diff --git a/yaserde/src/lib.rs b/yaserde/src/lib.rs
index a2034f7..68becda 100644
--- a/yaserde/src/lib.rs
+++ b/yaserde/src/lib.rs
@@ -25,6 +25,51 @@ pub trait Visitor<'de>: Sized {
   /// The value produced by this visitor.
   type Value;
 
+  fn visit_bool(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected bool {}", v))
+  }
+
+  fn visit_i8(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected i8 {}", v))
+  }
+
+  fn visit_u8(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected u8 {}", v))
+  }
+
+  fn visit_i16(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected i16 {}", v))
+  }
+
+  fn visit_u16(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected u16 {}", v))
+  }
+
+  fn visit_i32(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected i32 {}", v))
+  }
+
+  fn visit_u32(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected u32 {}", v))
+  }
+
+  fn visit_i64(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected i64 {}", v))
+  }
+
+  fn visit_u64(self, v: &str) -> Result<Self::Value, String>
+  {
+    Err(format!("Unexpected u64 {}", v))
+  }
+
   fn visit_str(self, v: &str) -> Result<Self::Value, String>
   {
     Err(format!("Unexpected str {}", v))
@@ -54,11 +99,13 @@ macro_rules! serialize_type {
 serialize_type!(bool);
 serialize_type!(char);
 
+serialize_type!(usize);
 serialize_type!(u8);
 serialize_type!(u16);
 serialize_type!(u32);
 serialize_type!(u64);
 
+serialize_type!(isize);
 serialize_type!(i8);
 serialize_type!(i16);
 serialize_type!(i32);
@@ -66,4 +113,3 @@ serialize_type!(i64);
 
 serialize_type!(f32);
 serialize_type!(f64);
-
diff --git a/yaserde/tests/der_type.rs b/yaserde/tests/der_type.rs
new file mode 100644
index 0000000..d930986
--- /dev/null
+++ b/yaserde/tests/der_type.rs
@@ -0,0 +1,48 @@
+
+extern crate yaserde;
+#[macro_use]
+extern crate yaserde_derive;
+extern crate xml;
+#[macro_use]
+extern crate log;
+
+use std::io::Read;
+use yaserde::YaDeserialize;
+use yaserde::de::from_str;
+
+macro_rules! convert_and_validate {
+  ($type:ty, $value:expr, $content:expr) => ({
+
+    #[derive(YaDeserialize, PartialEq, Debug)]
+    #[yaserde(root="data")]
+    pub struct Data {
+      item: $type
+    }
+
+    let model = Data {
+      item: $value
+    };
+
+    let content = String::from("<?xml version=\"1.0\" encoding=\"utf-8\"?><data><item>") + $content + "</item></data>";
+
+    let loaded : Result<Data, String> = from_str(&content);
+    assert_eq!(loaded, Ok(model));
+  })
+}
+
+#[test]
+fn de_type() {
+  convert_and_validate!(bool, true, "true");
+  convert_and_validate!(u8, 12 as u8, "12");
+  convert_and_validate!(i8, 12 as i8, "12");
+  convert_and_validate!(i8, -12 as i8, "-12");
+  convert_and_validate!(u16, 12 as u16, "12");
+  convert_and_validate!(i16, 12 as i16, "12");
+  convert_and_validate!(i16, -12 as i16, "-12");
+  convert_and_validate!(u32, 12 as u32, "12");
+  convert_and_validate!(i32, 12 as i32, "12");
+  convert_and_validate!(i32, -12 as i32, "-12");
+  convert_and_validate!(u64, 12 as u64, "12");
+  convert_and_validate!(i64, 12 as i64, "12");
+  convert_and_validate!(i64, -12 as i64, "-12");
+}
diff --git a/yaserde/tests/se_type.rs b/yaserde/tests/se_type.rs
new file mode 100644
index 0000000..29366a4
--- /dev/null
+++ b/yaserde/tests/se_type.rs
@@ -0,0 +1,46 @@
+
+extern crate yaserde;
+#[macro_use]
+extern crate yaserde_derive;
+extern crate xml;
+#[macro_use]
+extern crate log;
+
+use std::io::Write;
+use yaserde::YaSerialize;
+use yaserde::ser::to_string;
+
+macro_rules! convert_and_validate {
+  ($type:ty, $value:expr, $content:expr) => ({
+
+    #[derive(YaSerialize, PartialEq, Debug)]
+    #[yaserde(root="data")]
+    pub struct Data {
+      item: $type
+    }
+    let model = Data {
+      item: $value
+    };
+
+    let data : Result<String, String> = to_string(&model);
+    let content = String::from("<?xml version=\"1.0\" encoding=\"utf-8\"?><data><item>") + $content + "</item></data>";
+    assert_eq!(data, Ok(content));
+  })
+}
+
+#[test]
+fn ser_type() {
+  convert_and_validate!(bool, true, "true");
+  convert_and_validate!(u8, 12 as u8, "12");
+  convert_and_validate!(i8, 12 as i8, "12");
+  convert_and_validate!(i8, -12 as i8, "-12");
+  convert_and_validate!(u16, 12 as u16, "12");
+  convert_and_validate!(i16, 12 as i16, "12");
+  convert_and_validate!(i16, -12 as i16, "-12");
+  convert_and_validate!(u32, 12 as u32, "12");
+  convert_and_validate!(i32, 12 as i32, "12");
+  convert_and_validate!(i32, -12 as i32, "-12");
+  convert_and_validate!(u64, 12 as u64, "12");
+  convert_and_validate!(i64, 12 as i64, "12");
+  convert_and_validate!(i64, -12 as i64, "-12");
+}
diff --git a/yaserde_derive/src/de/expand_enum.rs b/yaserde_derive/src/de/expand_enum.rs
index 3848680..0d84a08 100644
--- a/yaserde_derive/src/de/expand_enum.rs
+++ b/yaserde_derive/src/de/expand_enum.rs
@@ -8,7 +8,7 @@ use syn::Ident;
 use syn::DataEnum;
 use proc_macro2::Span;
 
-pub fn parse(data_enum: &DataEnum, name: &Ident, root: &String, namespaces: &BTreeMap<String, String>) -> Tokens {
+pub fn parse(data_enum: &DataEnum, name: &Ident, root: &String, _namespaces: &BTreeMap<String, String>) -> Tokens {
   let variables : Tokens = data_enum.variants.iter().map(|ref variant|
     {
       match variant.fields {
@@ -18,12 +18,26 @@ pub fn parse(data_enum: &DataEnum, name: &Ident, root: &String, namespaces: &BTr
             let field_label = field.ident;
 
             match get_field_type(field) {
-              Some(FieldType::FieldTypeString) => {
-                Some(quote!{
-                  #[allow(unused_mut)]
-                  let mut #field_label : String = "".to_string();
-                })
-              },
+              Some(FieldType::FieldTypeString) =>
+                build_default_value(&field_label, quote!{String}, quote!{"".to_string()}),
+              Some(FieldType::FieldTypeBool) =>
+                build_default_value(&field_label, quote!{bool}, quote!{false}),
+              Some(FieldType::FieldTypeI8) =>
+                build_default_value(&field_label, quote!{i8}, quote!{0}),
+              Some(FieldType::FieldTypeU8) =>
+                build_default_value(&field_label, quote!{u8}, quote!{0}),
+              Some(FieldType::FieldTypeI16) =>
+                build_default_value(&field_label, quote!{i16}, quote!{0}),
+              Some(FieldType::FieldTypeU16) =>
+                build_default_value(&field_label, quote!{u16}, quote!{0}),
+              Some(FieldType::FieldTypeI32) =>
+                build_default_value(&field_label, quote!{i32}, quote!{0}),
+              Some(FieldType::FieldTypeU32) =>
+                build_default_value(&field_label, quote!{u32}, quote!{0}),
+              Some(FieldType::FieldTypeI64) =>
+                build_default_value(&field_label, quote!{i64}, quote!{0}),
+              Some(FieldType::FieldTypeU64) =>
+                build_default_value(&field_label, quote!{u64}, quote!{0}),
               Some(FieldType::FieldTypeStruct{struct_name}) => {
                 Some(quote!{
                   #[allow(unused_mut)]
@@ -33,12 +47,26 @@ pub fn parse(data_enum: &DataEnum, name: &Ident, root: &String, namespaces: &BTr
               Some(FieldType::FieldTypeVec{data_type}) => {
                 let dt = Box::into_raw(data_type);
                 match unsafe{dt.as_ref()} {
-                  Some(&FieldType::FieldTypeString) => {
-                    Some(quote!{
-                      #[allow(unused_mut)]
-                      let mut #field_label : Vec<String> = vec![];
-                    })
-                  },
+                  Some(&FieldType::FieldTypeString) =>
+                    build_default_value(&field_label, quote!{Vec<String>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeBool) =>
+                    build_default_value(&field_label, quote!{Vec<bool>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeI8) =>
+                    build_default_value(&field_label, quote!{Vec<i8>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeU8) =>
+                    build_default_value(&field_label, quote!{Vec<u8>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeI16) =>
+                    build_default_value(&field_label, quote!{Vec<i16>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeU16) =>
+                    build_default_value(&field_label, quote!{Vec<u16>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeI32) =>
+                    build_default_value(&field_label, quote!{Vec<i32>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeU32) =>
+                    build_default_value(&field_label, quote!{Vec<u32>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeI64) =>
+                    build_default_value(&field_label, quote!{Vec<i64>}, quote!{vec![]}),
+                  Some(&FieldType::FieldTypeU64) =>
+                    build_default_value(&field_label, quote!{Vec<u64>}, quote!{vec![]}),
                   Some(&FieldType::FieldTypeStruct{struct_name}) => {
                     Some(quote!{
                       #[allow(unused_mut)]
@@ -181,13 +209,6 @@ pub fn parse(data_enum: &DataEnum, name: &Ident, root: &String, namespaces: &BTr
               let _root = reader.next();
             },
             xml::reader::XmlEvent::Characters(characters_content) => {
-            //   println!("{:?} - {:?} -- {:?}", prev_level, current_level, characters_content.as_str());
-            //   if prev_level == current_level {
-            //     match characters_content.as_str() {
-            //       #match_to_enum
-            //       _ => {}
-            //     }
-            //   }
               let _root = reader.next();
             },
             event => {
@@ -206,3 +227,10 @@ pub fn parse(data_enum: &DataEnum, name: &Ident, root: &String, namespaces: &BTr
     }
   }
 }
+
+fn build_default_value(label: &Option<Ident>, field_type: Tokens, default: Tokens) -> Option<Tokens> {
+  Some(quote!{
+    #[allow(unused_mut)]
+    let mut #label : #field_type = #default;
+  })
+}
diff --git a/yaserde_derive/src/de/expand_struct.rs b/yaserde_derive/src/de/expand_struct.rs
index 577c6e2..7961047 100644
--- a/yaserde_derive/src/de/expand_struct.rs
+++ b/yaserde_derive/src/de/expand_struct.rs
@@ -9,7 +9,7 @@ use proc_macro2::Span;
 
 pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces: &BTreeMap<String, String>) -> Tokens {
 
-  let validate_namespace : Tokens = namespaces.iter().map(|(ref prefix, ref namespace)| {
+  let validate_namespace : Tokens = namespaces.iter().map(|(ref _prefix, ref namespace)| {
       Some(quote!(
 
         let mut found = false;
@@ -33,12 +33,26 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
     {
       let label = field.ident;
       match get_field_type(field) {
-        Some(FieldType::FieldTypeString) => {
-          Some(quote!{
-            #[allow(unused_mut)]
-            let mut #label : String = "".to_string();
-          })
-        },
+        Some(FieldType::FieldTypeString) =>
+          build_default_value(&label, quote!{String}, quote!{"".to_string()}),
+        Some(FieldType::FieldTypeBool) =>
+          build_default_value(&label, quote!{bool}, quote!{false}),
+        Some(FieldType::FieldTypeI8) =>
+          build_default_value(&label, quote!{i8}, quote!{0}),
+        Some(FieldType::FieldTypeU8) =>
+          build_default_value(&label, quote!{u8}, quote!{0}),
+        Some(FieldType::FieldTypeI16) =>
+          build_default_value(&label, quote!{i16}, quote!{0}),
+        Some(FieldType::FieldTypeU16) =>
+          build_default_value(&label, quote!{u16}, quote!{0}),
+        Some(FieldType::FieldTypeI32) =>
+          build_default_value(&label, quote!{i32}, quote!{0}),
+        Some(FieldType::FieldTypeU32) =>
+          build_default_value(&label, quote!{u32}, quote!{0}),
+        Some(FieldType::FieldTypeI64) =>
+          build_default_value(&label, quote!{i64}, quote!{0}),
+        Some(FieldType::FieldTypeU64) =>
+          build_default_value(&label, quote!{u64}, quote!{0}),
         Some(FieldType::FieldTypeStruct{struct_name}) => {
           Some(quote!{
             #[allow(unused_mut, non_snake_case, non_camel_case_types)]
@@ -48,12 +62,26 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
         Some(FieldType::FieldTypeVec{data_type}) => {
           let dt = Box::into_raw(data_type);
           match unsafe{dt.as_ref()} {
-            Some(&FieldType::FieldTypeString) => {
-              Some(quote!{
-                #[allow(unused_mut)]
-                let mut #label : Vec<String> = vec![];
-              })
-            },
+            Some(&FieldType::FieldTypeString) =>
+              build_default_value(&label, quote!{Vec<String>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeBool) =>
+              build_default_value(&label, quote!{Vec<bool>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeI8) =>
+              build_default_value(&label, quote!{Vec<i8>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeU8) =>
+              build_default_value(&label, quote!{Vec<u8>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeI16) =>
+              build_default_value(&label, quote!{Vec<i16>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeU16) =>
+              build_default_value(&label, quote!{Vec<u16>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeI32) =>
+              build_default_value(&label, quote!{Vec<i32>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeU32) =>
+              build_default_value(&label, quote!{Vec<u32>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeI64) =>
+              build_default_value(&label, quote!{Vec<i64>}, quote!{vec![]}),
+            Some(&FieldType::FieldTypeU64) =>
+              build_default_value(&label, quote!{Vec<u64>}, quote!{vec![]}),
             Some(&FieldType::FieldTypeStruct{struct_name}) => {
               Some(quote!{
                 #[allow(unused_mut)]
@@ -73,23 +101,56 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
 
   let field_visitors: Tokens = data_struct.fields.iter().map(|ref field|
     {
-      let label = field.ident;
-      let label_name = label.unwrap().to_string();
+      let field_attrs = YaSerdeAttribute::parse(&field.attrs);
+      let label_name = 
+        if let Some(value) = field_attrs.rename {
+          Ident::new(&format!("{}", value), Span::call_site()).to_string()
+        } else {
+          field.ident.unwrap().to_string()
+        };
+
       let visitor_label = Ident::new(&format!("__Visitor{}", label_name), Span::call_site());
 
       match get_field_type(field) {
         Some(FieldType::FieldTypeString) => {
-          Some(quote!{
-            #[allow(non_snake_case, non_camel_case_types)]
-            struct #visitor_label;
-            impl<'de> Visitor<'de> for #visitor_label {
-              type Value = String;
-
-              fn visit_str(self, v: &str) -> Result<Self::Value, String> {
-                Ok(String::from(v))
-              }
-            }
-          })
+          let visitor = Ident::new("visit_str", Span::call_site());
+          build_declare_visitor(quote!{String}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeBool) => {
+          let visitor = Ident::new("visit_bool", Span::call_site());
+          build_declare_visitor(quote!{bool}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeI8) => {
+          let visitor = Ident::new("visit_i8", Span::call_site());
+          build_declare_visitor(quote!{i8}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeU8) => {
+          let visitor = Ident::new("visit_u8", Span::call_site());
+          build_declare_visitor(quote!{u8}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeI16) => {
+          let visitor = Ident::new("visit_i16", Span::call_site());
+          build_declare_visitor(quote!{i16}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeU16) => {
+          let visitor = Ident::new("visit_u16", Span::call_site());
+          build_declare_visitor(quote!{u16}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeI32) => {
+          let visitor = Ident::new("visit_i32", Span::call_site());
+          build_declare_visitor(quote!{i32}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeU32) => {
+          let visitor = Ident::new("visit_u32", Span::call_site());
+          build_declare_visitor(quote!{u32}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeI64) => {
+          let visitor = Ident::new("visit_i64", Span::call_site());
+          build_declare_visitor(quote!{i64}, &visitor, &visitor_label)
+        },
+        Some(FieldType::FieldTypeU64) => {
+          let visitor = Ident::new("visit_u64", Span::call_site());
+          build_declare_visitor(quote!{u64}, &visitor, &visitor_label)
         },
         Some(FieldType::FieldTypeStruct{struct_name}) => {
           let struct_id = struct_name.to_string();
@@ -113,17 +174,44 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
           let dt = Box::into_raw(data_type);
           match unsafe{dt.as_ref()} {
             Some(&FieldType::FieldTypeString) => {
-              Some(quote!{
-                #[allow(non_snake_case, non_camel_case_types)]
-                struct #visitor_label;
-                impl<'de> Visitor<'de> for #visitor_label {
-                  type Value = String;
-
-                  fn visit_str(self, v: &str) -> Result<Self::Value, String> {
-                    Ok(String::from(v))
-                  }
-                }
-              })
+              let visitor = Ident::new("visit_str", Span::call_site());
+              build_declare_visitor(quote!{String}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeBool) => {
+              let visitor = Ident::new("visit_bool", Span::call_site());
+              build_declare_visitor(quote!{bool}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeI8) => {
+              let visitor = Ident::new("visit_i8", Span::call_site());
+              build_declare_visitor(quote!{i8}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeU8) => {
+              let visitor = Ident::new("visit_u8", Span::call_site());
+              build_declare_visitor(quote!{u8}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeI16) => {
+              let visitor = Ident::new("visit_i16", Span::call_site());
+              build_declare_visitor(quote!{i16}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeU16) => {
+              let visitor = Ident::new("visit_u16", Span::call_site());
+              build_declare_visitor(quote!{u16}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeI32) => {
+              let visitor = Ident::new("visit_i32", Span::call_site());
+              build_declare_visitor(quote!{i32}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeU32) => {
+              let visitor = Ident::new("visit_u32", Span::call_site());
+              build_declare_visitor(quote!{u32}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeI64) => {
+              let visitor = Ident::new("visit_i64", Span::call_site());
+              build_declare_visitor(quote!{i64}, &visitor, &visitor_label)
+            }
+            Some(&FieldType::FieldTypeU64) => {
+              let visitor = Ident::new("visit_u64", Span::call_site());
+              build_declare_visitor(quote!{u64}, &visitor, &visitor_label)
             }
             Some(&FieldType::FieldTypeStruct{struct_name}) => {
               let struct_ident = Ident::new(&format!("{}", struct_name), Span::def_site());
@@ -167,31 +255,44 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
 
       match get_field_type(field) {
         Some(FieldType::FieldTypeString) => {
-          Some(quote!{
-            #label_name => {
-              let visitor = #visitor_label{};
-
-              if let XmlEvent::StartElement { .. } = *reader.peek()? {
-                reader.set_map_value()
-              }
-
-              let result = reader.read_inner_value::<String, _>(|reader| {
-                if let XmlEvent::EndElement { .. } = *reader.peek()? {
-                  return visitor.visit_str("");
-                }
-
-                if let Ok(XmlEvent::Characters(s)) = reader.next() {
-                  visitor.visit_str(&s)
-                } else {
-                  Err(format!("unable to parse content for {}", #label_name))
-                }
-              });
-
-              if let Ok(value) = result {
-                #label = value
-              }
-            }
-          })
+          let visitor = Ident::new("visit_str", Span::call_site());
+          build_call_visitor(quote!{String}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeBool) => {
+          let visitor = Ident::new("visit_bool", Span::call_site());
+          build_call_visitor(quote!{bool}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeI8) => {
+          let visitor = Ident::new("visit_i8", Span::call_site());
+          build_call_visitor(quote!{i8}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeU8) => {
+          let visitor = Ident::new("visit_u8", Span::call_site());
+          build_call_visitor(quote!{u8}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeU16) => {
+          let visitor = Ident::new("visit_u16", Span::call_site());
+          build_call_visitor(quote!{u16}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeI16) => {
+          let visitor = Ident::new("visit_i16", Span::call_site());
+          build_call_visitor(quote!{i16}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeU32) => {
+          let visitor = Ident::new("visit_u32", Span::call_site());
+          build_call_visitor(quote!{u32}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeI32) => {
+          let visitor = Ident::new("visit_i32", Span::call_site());
+          build_call_visitor(quote!{i32}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeU64) => {
+          let visitor = Ident::new("visit_u64", Span::call_site());
+          build_call_visitor(quote!{u64}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
+        },
+        Some(FieldType::FieldTypeI64) => {
+          let visitor = Ident::new("visit_i64", Span::call_site());
+          build_call_visitor(quote!{i64}, &visitor, quote!{= value}, &visitor_label, &label, &label_name)
         },
         Some(FieldType::FieldTypeStruct{struct_name}) => {
           Some(quote!{
@@ -213,30 +314,44 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
           let dt = Box::into_raw(data_type);
           match unsafe{dt.as_ref()} {
             Some(&FieldType::FieldTypeString) => {
-              Some(quote!{
-                #label_name => {
-                  let visitor = #visitor_label{};
-                  if let XmlEvent::StartElement { .. } = *reader.peek()? {
-                    reader.set_map_value()
-                  }
-
-                  let result = reader.read_inner_value::<String, _>(|reader| {
-                    if let XmlEvent::EndElement { .. } = *reader.peek()? {
-                      return visitor.visit_str("");
-                    }
-
-                    if let Ok(XmlEvent::Characters(s)) = reader.next() {
-                      visitor.visit_str(&s)
-                    } else {
-                      Err(format!("unable to parse content for {}", #label_name))
-                    }
-                  });
-
-                  if let Ok(value) = result {
-                    #label.push(value)
-                  }
-                }
-              })
+              let visitor = Ident::new("visit_str", Span::call_site());
+              build_call_visitor(quote!{String}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeBool) => {
+              let visitor = Ident::new("visit_bool", Span::call_site());
+              build_call_visitor(quote!{bool}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeI8) => {
+              let visitor = Ident::new("visit_i8", Span::call_site());
+              build_call_visitor(quote!{i8}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeU8) => {
+              let visitor = Ident::new("visit_u8", Span::call_site());
+              build_call_visitor(quote!{u8}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeI16) => {
+              let visitor = Ident::new("visit_i16", Span::call_site());
+              build_call_visitor(quote!{i16}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeU16) => {
+              let visitor = Ident::new("visit_u16", Span::call_site());
+              build_call_visitor(quote!{u16}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeI32) => {
+              let visitor = Ident::new("visit_i32", Span::call_site());
+              build_call_visitor(quote!{i32}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeU32) => {
+              let visitor = Ident::new("visit_u32", Span::call_site());
+              build_call_visitor(quote!{u32}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeI64) => {
+              let visitor = Ident::new("visit_i64", Span::call_site());
+              build_call_visitor(quote!{i64}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
+            }
+            Some(&FieldType::FieldTypeU64) => {
+              let visitor = Ident::new("visit_u64", Span::call_site());
+              build_call_visitor(quote!{u64}, &visitor, quote!{.push(value)}, &visitor_label, &label, &label_name)
             }
             Some(&FieldType::FieldTypeStruct{struct_name}) => {
               let struct_ident = Ident::new(&format!("{}", struct_name), Span::def_site());
@@ -272,7 +387,6 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
     }
 
     let label = field.ident;
-    let field_ident = field.ident.unwrap().to_string();
     let label_name =
       if let Some(value) = field_attrs.rename {
         Ident::new(&format!("{}", value), Span::call_site()).to_string()
@@ -291,7 +405,7 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
         })
       }
       Some(FieldType::FieldTypeStruct{struct_name}) => {
-        let struct_ident = Ident::new(&format!("__Visitor_{}_{}", field_ident, struct_name), Span::call_site());
+        let struct_ident = Ident::new(&format!("__Visitor_{}_{}", label_name, struct_name), Span::call_site());
 
         Some(quote!{
           for attr in attributes {
@@ -319,15 +433,27 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
       let field_attrs = YaSerdeAttribute::parse(&field.attrs);
 
       match get_field_type(field) {
-        Some(FieldType::FieldTypeString) => {
-          if field_attrs.text {
-            Some(quote!{
-              #label = text_content.to_owned();
-            })
-          } else {
-            None
-          }
-        },
+        Some(FieldType::FieldTypeString) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{text_content.to_owned()}),
+        Some(FieldType::FieldTypeBool) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{bool::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeI8) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{i8::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeU8) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{u8::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeI16) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{i16::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeU16) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{u16::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeI32) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{i32::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeU32) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{u32::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeI64) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{i64::from_str(text_content).unwrap()}),
+        Some(FieldType::FieldTypeU64) =>
+          build_set_text_to_value(&field_attrs, &label, quote!{u64::from_str(text_content).unwrap()}),
+
         Some(FieldType::FieldTypeStruct{..}) |
         Some(FieldType::FieldTypeVec{..})|
         None => None,
@@ -341,14 +467,12 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
     {
       let label = field.ident;
 
-      match get_field_type(field) {
-        Some(FieldType::FieldTypeString) |
-        Some(FieldType::FieldTypeStruct{..}) |
-        Some(FieldType::FieldTypeVec{..}) =>
-          Some(quote!{
-            #label: #label,
-          }),
-        None => None,
+      if get_field_type(field).is_some() {
+        Some(quote!{
+          #label: #label,
+        })
+      } else {
+        None
       }
     })
     .filter(|x| x.is_some())
@@ -358,6 +482,8 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
   quote! {
     use xml::reader::XmlEvent;
     use yaserde::Visitor;
+    #[allow(unknown_lints, unused_imports)]
+    use std::str::FromStr;
 
     impl YaDeserialize for #name {
       #[allow(unused_variables)]
@@ -410,3 +536,64 @@ pub fn parse(data_struct: &DataStruct, name: &Ident, root: &String, namespaces:
     }
   }
 }
+
+fn build_default_value(label: &Option<Ident>, field_type: Tokens, default: Tokens) -> Option<Tokens> {
+  Some(quote!{
+    #[allow(unused_mut)]
+    let mut #label : #field_type = #default;
+  })
+}
+
+fn build_declare_visitor(field_type: Tokens, visitor: &Ident, visitor_label: &Ident) -> Option<Tokens> {
+  Some(quote!{
+    #[allow(non_snake_case, non_camel_case_types)]
+    struct #visitor_label;
+    impl<'de> Visitor<'de> for #visitor_label {
+      type Value = #field_type;
+
+      fn #visitor(self, v: &str) -> Result<Self::Value, String> {
+        Ok(#field_type::from_str(v).unwrap())
+      }
+    }
+  })
+}
+
+fn build_call_visitor(field_type: Tokens, visitor: &Ident, action: Tokens, visitor_label: &Ident, label: &Option<Ident>, label_name: &String) -> Option<Tokens> {
+  Some(quote!{
+    #label_name => {
+      let visitor = #visitor_label{};
+
+      if let XmlEvent::StartElement { .. } = *reader.peek()? {
+        reader.set_map_value()
+      }
+
+      let result = reader.read_inner_value::<#field_type, _>(|reader| {
+        if let XmlEvent::EndElement { .. } = *reader.peek()? {
+          return visitor.#visitor("");
+        }
+
+        if let Ok(XmlEvent::Characters(s)) = reader.next() {
+          visitor.#visitor(&s)
+        } else {
+          Err(format!("unable to parse content for {}", #label_name))
+        }
+      });
+
+      if let Ok(value) = result {
+        // #label = value
+        #label#action
+      }
+    }
+  })
+}
+
+
+fn build_set_text_to_value(field_attrs: &YaSerdeAttribute, label: &Option<Ident>, action: Tokens) -> Option<Tokens> {
+  if field_attrs.text {
+    Some(quote!{
+      #label = #action;
+    })
+  } else {
+    None
+  }
+}
diff --git a/yaserde_derive/src/field_type.rs b/yaserde_derive/src/field_type.rs
index a7d279c..73f6f9c 100644
--- a/yaserde_derive/src/field_type.rs
+++ b/yaserde_derive/src/field_type.rs
@@ -6,6 +6,15 @@ use syn::Type::Path;
 #[derive(Debug)]
 pub enum FieldType {
   FieldTypeString,
+  FieldTypeBool,
+  FieldTypeI8,
+  FieldTypeU8,
+  FieldTypeI16,
+  FieldTypeU16,
+  FieldTypeI32,
+  FieldTypeU32,
+  FieldTypeI64,
+  FieldTypeU64,
   FieldTypeVec{data_type: Box<FieldType>},
   FieldTypeStruct{struct_name: syn::Ident},
 }
@@ -14,6 +23,15 @@ impl FieldType {
   fn from_ident(t: &syn::PathSegment) -> Option<FieldType> {
     match t.ident.as_ref() {
       "String" => Some(FieldType::FieldTypeString),
+      "bool" => Some(FieldType::FieldTypeBool),
+      "i8" => Some(FieldType::FieldTypeI8),
+      "u8" => Some(FieldType::FieldTypeU8),
+      "i16" => Some(FieldType::FieldTypeI16),
+      "u16" => Some(FieldType::FieldTypeU16),
+      "i32" => Some(FieldType::FieldTypeI32),
+      "u32" => Some(FieldType::FieldTypeU32),
+      "i64" => Some(FieldType::FieldTypeI64),
+      "u64" => Some(FieldType::FieldTypeU64),
       "Vec" => {
         get_vec_type(t).map(|data_type| {
           let p = syn::PathSegment{
diff --git a/yaserde_derive/src/ser/expand_struct.rs b/yaserde_derive/src/ser/expand_struct.rs
index e015300..261e673 100644
--- a/yaserde_derive/src/ser/expand_struct.rs
+++ b/yaserde_derive/src/ser/expand_struct.rs
@@ -30,11 +30,20 @@ pub fn serialize(data_struct: &DataStruct, name: &Ident, root: &String, namespac
         };
 
       match get_field_type(field) {
-        Some(FieldType::FieldTypeString) =>
+        Some(FieldType::FieldTypeString) |
+        Some(FieldType::FieldTypeBool) |
+        Some(FieldType::FieldTypeI8) |
+        Some(FieldType::FieldTypeU8) |
+        Some(FieldType::FieldTypeI16) |
+        Some(FieldType::FieldTypeU16) |
+        Some(FieldType::FieldTypeI32) |
+        Some(FieldType::FieldTypeU32) |
+        Some(FieldType::FieldTypeI64) |
+        Some(FieldType::FieldTypeU64) =>
           Some(quote!{
             .attr(#label_name, &self.#label)
           }),
-        Some(FieldType::FieldTypeStruct{struct_name: _struct_name}) =>
+        Some(FieldType::FieldTypeStruct{..}) =>
           Some(quote!{
             .attr(#label_name, &*{
               use std::mem;
@@ -108,21 +117,35 @@ pub fn serialize(data_struct: &DataStruct, name: &Ident, root: &String, namespac
             let end_event = XmlEvent::end_element();
             let _ret = writer.write(end_event);
           }),
-        Some(FieldType::FieldTypeStruct{..}) =>
+        Some(FieldType::FieldTypeBool) |
+        Some(FieldType::FieldTypeI8) |
+        Some(FieldType::FieldTypeU8) |
+        Some(FieldType::FieldTypeI16) |
+        Some(FieldType::FieldTypeU16) |
+        Some(FieldType::FieldTypeI32) |
+        Some(FieldType::FieldTypeU32) |
+        Some(FieldType::FieldTypeI64) |
+        Some(FieldType::FieldTypeU64) =>
           Some(quote!{
             let start_event = XmlEvent::start_element(#label_name);
             let _ret = writer.write(start_event);
 
-            writer.set_skip_start_end(true);
+            let content = format!("{}", &self.#label);
+            let data_event = XmlEvent::characters(&content);
+            let _ret = writer.write(data_event);
+
+            let end_event = XmlEvent::end_element();
+            let _ret = writer.write(end_event);
+          }),
+        Some(FieldType::FieldTypeStruct{..}) =>
+          Some(quote!{
+            writer.set_skip_start_end(false);
             match self.#label.serialize(writer) {
               Ok(()) => {},
               Err(msg) => {
                 return Err(msg);
               },
             };
-
-            let struct_end_event = XmlEvent::end_element();
-            let _ret = writer.write(struct_end_event);
           }),
         Some(FieldType::FieldTypeVec{data_type}) => {
           let dt = Box::into_raw(data_type);
@@ -141,12 +164,30 @@ pub fn serialize(data_struct: &DataStruct, name: &Ident, root: &String, namespac
                 }
               })
             },
+            Some(&FieldType::FieldTypeBool) |
+            Some(&FieldType::FieldTypeI8) |
+            Some(&FieldType::FieldTypeU8) |
+            Some(&FieldType::FieldTypeI16) |
+            Some(&FieldType::FieldTypeU16) |
+            Some(&FieldType::FieldTypeI32) |
+            Some(&FieldType::FieldTypeU32) |
+            Some(&FieldType::FieldTypeI64) |
+            Some(&FieldType::FieldTypeU64) => {
+              Some(quote!{
+                for item in &self.#label {
+                  let start_event = XmlEvent::start_element(#label_name);
+                  let _ret = writer.write(start_event);
+
+                  let data_event = XmlEvent::characters(format!("{}", item));
+                  let _ret = writer.write(data_event);
+
+                  let end_event = XmlEvent::end_element();
+                  let _ret = writer.write(end_event);
+                }
+              })
+            },
             Some(&FieldType::FieldTypeStruct{..}) => {
               Some(quote!{
-
-                let start_event = XmlEvent::start_element(#label_name);
-                let _ret = writer.write(start_event);
-
                 for item in &self.#label {
                   writer.set_skip_start_end(false);
                   match item.serialize(writer) {
@@ -156,8 +197,6 @@ pub fn serialize(data_struct: &DataStruct, name: &Ident, root: &String, namespac
                     },
                   };
                 }
-                let end_event = XmlEvent::end_element();
-                let _ret = writer.write(end_event);
               })
             },
             Some(&FieldType::FieldTypeVec{..}) => {unimplemented!();},