diff --git a/src/bibliography/bib_types/article.rs b/src/bibliography/bib_types/article.rs
index 0fee1b2..6b4ca4c 100644
--- a/src/bibliography/bib_types/article.rs
+++ b/src/bibliography/bib_types/article.rs
@@ -1,4 +1,4 @@
-use chrono::{Local, Date};
+use crate::bibliography::bib_types::LocalDate;
 
 /// An article source
 #[derive(Clone, Debug)]
@@ -6,7 +6,7 @@ pub struct Article {
     pub author: String,
     pub title: String,
     pub journal: String,
-    pub date: Date<Local>,
+    pub date: LocalDate,
     pub volume: Option<String>,
     pub number: Option<String>,
     pub pages: Option<String>,
@@ -14,7 +14,7 @@ pub struct Article {
 
 impl Article {
     /// Creates a new article with the mandatory fields filled
-    pub fn new(author: String, title: String, journal: String, date: Date<Local>) -> Self {
+    pub fn new(author: String, title: String, journal: String, date: LocalDate) -> Self {
         Self {
             author,
             title,
diff --git a/src/bibliography/bib_types/book.rs b/src/bibliography/bib_types/book.rs
new file mode 100644
index 0000000..cf78ee2
--- /dev/null
+++ b/src/bibliography/bib_types/book.rs
@@ -0,0 +1,33 @@
+use crate::bibliography::bib_types::LocalDate;
+
+#[derive(Clone, Debug)]
+pub struct Book {
+    pub author: String,
+    pub title: String,
+    pub publisher: String,
+    pub date: LocalDate,
+    pub volume: Option<String>,
+    pub series: Option<String>,
+    pub address: Option<String>,
+    pub edition: Option<String>,
+    pub month: Option<String>,
+    pub url: Option<String>,
+}
+
+impl Book {
+    /// Creates a new book with the mandatory fields filled
+    pub fn new(author: String, title: String, publisher: String, date: LocalDate) -> Self {
+        Self {
+            author,
+            title,
+            publisher,
+            date,
+            volume: None,
+            series: None,
+            address: None,
+            edition: None,
+            month: None,
+            url: None,
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/bibliography/bib_types/mod.rs b/src/bibliography/bib_types/mod.rs
index ba0c863..574a856 100644
--- a/src/bibliography/bib_types/mod.rs
+++ b/src/bibliography/bib_types/mod.rs
@@ -1,12 +1,17 @@
 use crate::bibliography::bib_types::article::Article;
+use crate::bibliography::bib_types::book::Book;
+use chrono::{Date, Local};
 
 pub mod article;
+pub mod book;
+
+pub type LocalDate = Date<Local>;
 
 /// A type of bibliography entry
 #[derive(Clone, Debug)]
 pub enum BibliographyType {
     Article(Article),
-    Book,
+    Book(Book),
     Booklet,
     InBook,
     InCollection,