diff --git a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookDTO.java b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookDTO.java
index b9f8697..d36ac70 100644
--- a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookDTO.java
+++ b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookDTO.java
@@ -10,12 +10,14 @@ import java.util.ArrayList;
 @Getter
 @Builder
 public class BookDTO {
-    private ArrayList<String> categories = new ArrayList<>();
-    private String description ;
-    private String language;
+    private String isbn;
     private String title;
     private String author;
     private String editor;
     private LocalDate date;
-
+    private double price;
+    private Integer stock;
+    private ArrayList<String> categories = new ArrayList<>();
+    private String description ;
+    private String language;
 }
diff --git a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverter.java b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverter.java
index 0173a9a..6761041 100644
--- a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverter.java
+++ b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverter.java
@@ -10,10 +10,13 @@ public final class BookConverter {
 
     public static BookDTO ToDomain(BookInfo bookinfo, BookDetails bookdetails){
         return BookDTO.builder()
+                .isbn("0000000000000")
                 .title(bookinfo.title())
                 .author(bookinfo.author())
                 .editor(bookinfo.editor())
                 .date(bookinfo.date())
+                .price(50.99)
+                .stock(5)
                 .categories(bookdetails.getCategories())
                 .description(bookdetails.getDescription())
                 .language(bookdetails.getLanguage())
diff --git a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/entity/Book.java b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/entity/Book.java
index f1297ea..4192245 100644
--- a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/entity/Book.java
+++ b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/entity/Book.java
@@ -10,12 +10,14 @@ import java.util.ArrayList;
 @Getter
 @Builder
 public class Book {
-    private ArrayList<String> categories = new ArrayList<>();
-    private String description ;
-    private String language;
+    private String isbn;
     private String title;
     private String author;
     private String editor;
     private LocalDate date;
-
+    private double price;
+    private Integer stock;
+    private ArrayList<String> categories = new ArrayList<>();
+    private String description ;
+    private String language;
 }
diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverterTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverterTest.java
index 5e30473..db8f38a 100644
--- a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverterTest.java
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverterTest.java
@@ -36,7 +36,6 @@ public class BookConverterTest {
 
             BookDTO result = BookConverter.ToDomain(bookinfo, bookdetails);
 
-            //assertNotNull(result);
             assertEquals(bookinfo.title(), result.getTitle());
             assertEquals(bookinfo.author(), result.getAuthor());
             assertEquals(bookinfo.editor(), result.getEditor());
@@ -46,16 +45,16 @@ public class BookConverterTest {
             assertEquals(bookdetails.getLanguage(), result.getLanguage());
         }
     }
-/**
+/*
     @Nested
     @DisplayName("toDTO() method tests")
     class ToDTOTests {
         LocalDate date = LocalDate.of(2026, 3, 24);
-        ArrayList<String> categories = new ArrayList<String>();
+        ArrayList<String> categories = new ArrayList<>();
         categories.add("Thriller");
         categories.add("Biographie");
         Book book = Book.builder()
-                .isbn(1234567891012)
+                .isbn("1234567891012")
                 .title("La vie de Maxime")
                 .author("Marvin Aubert")
                 .editor("Kioon")
@@ -69,5 +68,5 @@ public class BookConverterTest {
 
         BookDTO result = BookConvert.ToDTO(book);
 
-    }**/
+    }*/
 }