diff --git a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookInfo.java b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookInfo.java
index 0ecc1b8..6bdbcb2 100644
--- a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookInfo.java
+++ b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookInfo.java
@@ -2,5 +2,5 @@ package fr.iut_fbleau.but3.dev62.mylibrary.book;
 
 import java.time.LocalDate;
 
-public record BookInfo(String title, String author, String editor, LocalDate date) {
+public record BookInfo(String isbn, String title, String author, String editor, LocalDate date) {
 }
diff --git a/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookSalesInfo.java b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookSalesInfo.java
new file mode 100644
index 0000000..5d0b828
--- /dev/null
+++ b/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookSalesInfo.java
@@ -0,0 +1,11 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder
+@Getter
+public class BookSalesInfo {
+    private double price;
+    private Integer stock;
+}
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 5bb8efc..42713a2 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
@@ -4,20 +4,21 @@ package fr.iut_fbleau.but3.dev62.mylibrary.book.converter;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDTO;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDetails;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.BookInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookSalesInfo;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Book;
 
 public final class BookConverter {
     private BookConverter(){}
 
-    public static Book ToDomain(BookInfo bookinfo, BookDetails bookdetails){
+    public static Book ToDomain(BookInfo bookinfo, BookSalesInfo booksalesinfo, BookDetails bookdetails){
         return Book.builder()
-                .isbn("0000000000000")
+                .isbn(bookinfo.isbn())
                 .title(bookinfo.title())
                 .author(bookinfo.author())
                 .editor(bookinfo.editor())
                 .date(bookinfo.date())
-                .price(50.99)
-                .stock(5)
+                .price(booksalesinfo.getPrice())
+                .stock(booksalesinfo.getStock())
                 .categories(bookdetails.getCategories())
                 .description(bookdetails.getDescription())
                 .language(bookdetails.getLanguage())
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 cd1731a..071d520 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
@@ -3,6 +3,7 @@ package fr.iut_fbleau.but3.dev62.mylibrary.book.converter;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDTO;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.BookInfo;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDetails;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookSalesInfo;
 import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Book;
 
 import org.junit.jupiter.api.DisplayName;
@@ -24,7 +25,11 @@ public class BookConverterTest {
         @Test
         void ShouldConvertBookToDomain(){
             LocalDate date = LocalDate.of(2026, 3, 24);
-            BookInfo bookinfo = new BookInfo("La vie de Maxime", "Marvin Aubert", "Kioon", date);
+            BookInfo bookinfo = new BookInfo("0000000000000","La vie de Maxime", "Marvin Aubert", "Kioon", date);
+            BookSalesInfo booksalesinfo = BookSalesInfo.builder()
+                    .price(12)
+                    .stock(10)
+                    .build();
             ArrayList<String> categories = new ArrayList<>();
             categories.add("Thriller");
             categories.add("Biographie");
@@ -34,13 +39,16 @@ public class BookConverterTest {
                     .language("Français")
                     .build();
 
-            Book result = BookConverter.ToDomain(bookinfo, bookdetails);
+            Book result = BookConverter.ToDomain(bookinfo, booksalesinfo, bookdetails);
 
+            assertEquals(bookinfo.isbn(), result.getIsbn());
             assertEquals(bookinfo.title(), result.getTitle());
             assertEquals(bookinfo.author(), result.getAuthor());
             assertEquals(bookinfo.editor(), result.getEditor());
             assertEquals(bookinfo.date(), result.getDate());
-            assertEquals(categories, result.getCategories());
+            assertEquals(booksalesinfo.getPrice(), result.getPrice());
+            assertEquals(booksalesinfo.getStock(), result.getStock());
+            assertEquals(bookdetails.getCategories(), result.getCategories());
             assertEquals(bookdetails.getDescription(), result.getDescription());
             assertEquals(bookdetails.getLanguage(), result.getLanguage());
         }
@@ -88,7 +96,11 @@ public class BookConverterTest {
     @DisplayName("Should preserve empty string values during conversion")
     void shouldPreserveEmptyStrings() {
         LocalDate date = LocalDate.of(2026, 3, 24);
-        BookInfo bookinfo = new BookInfo("La vie de Maxime", "Marvin Aubert", "Kioon", date);
+        BookInfo bookinfo = new BookInfo("0000000000000","La vie de Maxime", "Marvin Aubert", "Kioon", date);
+        BookSalesInfo booksalesinfo = BookSalesInfo.builder()
+                .price(12)
+                .stock(10)
+                .build();
         ArrayList<String> categories = new ArrayList<>();
         categories.add("Thriller");
         categories.add("Biographie");
@@ -98,7 +110,7 @@ public class BookConverterTest {
                 .language("Français")
                 .build();
 
-        Book book = BookConverter.ToDomain(bookinfo, bookdetails);
+        Book book = BookConverter.ToDomain(bookinfo, booksalesinfo, bookdetails);
         BookDTO result = BookConverter.ToDTO(book);
 
         assertEquals("", result.getDescription());
diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/IllegalBookStockExceptionTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/IllegalBookStockExceptionTest.java
index 2a8f91a..9c4b18f 100644
--- a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/IllegalBookStockExceptionTest.java
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/IllegalBookStockExceptionTest.java
@@ -1,6 +1,5 @@
 package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
 
-import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.IllegalCustomerPointException;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;