diff --git a/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java b/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
index ff9d9f5..97817d0 100644
--- a/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
+++ b/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
@@ -1,13 +1,14 @@
 package org.ntlab.citrusserver.repositories;
 
 import org.ntlab.citrusserver.entities.Account;
+import org.ntlab.citrusserver.entities.Book;
 import org.springframework.stereotype.Repository;
 import java.util.HashMap;
 
 @Repository
 public class BookManager {
 
-    private HashMap<String, HashMap<Integer, Book>> booksMap = new HashMap<String, HashMap<Integer, Book>>();
+    private HashMap<String, HashMap<Integer, Book>> booksMap = new HashMap<>();
 
     //本の一覧を返す
     public HashMap<String, HashMap<Integer, Book>> getBooksMap()
@@ -18,12 +19,9 @@
     //本の新規作成
     public int createBook(String accountId, String title, String color, Boolean publicity)
     {
-        Account account = new Account(accountId); //仮（Account作成時に相談）
-        Book book = new Book(accountId);
-        book.setTitle(title);
-        book.setColor(color);
-        book.setPublicity(publicity);
-        account.setBookCount(); //仮（本作成時、Account側で持っている数の加算を行ってもらう）
+        Account account = new Account(); //仮（Account作成時に相談）
+        Book book = new Book(title, publicity, color);
+        account.setBookCount(); //仮（本作成時、Account側で作られた本の数の加算を行ってもらう）
         return account.getnewId(); //仮（本の数を更新し、AccountIDを返してもらう）
     }
 
@@ -48,7 +46,7 @@
     }
 
     //本のタイトルを変更
-    public void putColor(String accountId, Integer bookId, String title)
+    public void putTitle(String accountId, Integer bookId, String title)
     {
         booksMap.get(accountId).get(bookId).setTitle(title);
     }