diff --git a/app/controllers/admin/books_controller.rb b/app/controllers/admin/books_controller.rb
index 63b1a7f..46ec24d 100644
--- a/app/controllers/admin/books_controller.rb
+++ b/app/controllers/admin/books_controller.rb
@@ -25,7 +25,7 @@ class Admin::BooksController < OrbitMemberController
     redirect_to :action=> 'index'
   end
   def merge
-    @books=Book.order_by(:year=>'desc').map{|value| value}.group_by{|v| [v[:book_title],v[:isbn]]}
+    @books=Book.sort_year_date.map{|value| value}.group_by{|v| [v[:book_title],v[:isbn]]}
     @books.each do |key,value|
       if value.length<=1
         @books.delete key
@@ -48,7 +48,7 @@ class Admin::BooksController < OrbitMemberController
   end
 
   def index
-    @writing_books = Book.order_by(:year=>'desc').page(params[:page]).per(10)
+    @writing_books = Book.sort_year_date.page(params[:page]).per(10)
     respond_to do |format|
       format.html # index.html.erb
       format.js { }
diff --git a/app/controllers/personal_books_controller.rb b/app/controllers/personal_books_controller.rb
index b2b2105..2a06965 100644
--- a/app/controllers/personal_books_controller.rb
+++ b/app/controllers/personal_books_controller.rb
@@ -3,7 +3,7 @@ class PersonalBooksController < ApplicationController
   def index
     params = OrbitHelper.params
     page_data_count = OrbitHelper.page_data_count
-    books = Book.where(is_hidden: false).sort_for_frontend.page(OrbitHelper.params[:page_no]).per(page_data_count)
+    books = Book.sort_for_frontend.page(OrbitHelper.params[:page_no]).per(page_data_count)
     page = Page.where(page_id: params[:page_id]).first rescue nil
 
     if page.custom_string_field == 'table'
diff --git a/app/models/book.rb b/app/models/book.rb
index 77175f9..319a619 100644
--- a/app/models/book.rb
+++ b/app/models/book.rb
@@ -39,7 +39,9 @@ class Book
 
   before_validation :add_http
 
-  scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:year => "desc", :publish_date => "desc", :publication_date => "desc") }
+  index({year: -1, :publish_date => -1, :publication_date => -1, _id: -1}, { unique: false, background: false })
+  scope :sort_year_date, ->{ order_by(:year => "desc", :publish_date => "desc", :publication_date => "desc", :id => "desc")) }
+  scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:year => "desc", :publish_date => "desc", :publication_date => "desc", :id => "desc") }
   def book_paper_type
     self.book_type.title rescue ""
   end
diff --git a/app/views/plugin/personal_book/_profile.html.erb b/app/views/plugin/personal_book/_profile.html.erb
index 2ac8b3a..1ce7b34 100644
--- a/app/views/plugin/personal_book/_profile.html.erb
+++ b/app/views/plugin/personal_book/_profile.html.erb
@@ -7,9 +7,9 @@
 
 <%
   if has_access?
-    @books = Book.where(member_profile_id: @member.id).desc(:year).page(params[:page]).per(10)
+    @books = Book.where(member_profile_id: @member.id).sort_year_date.page(params[:page]).per(10)
   else
-    @books = Book.where(is_hidden: false, member_profile_id: @member.id).desc(:year).page(params[:page]).per(10)
+    @books = Book.where(is_hidden: false, member_profile_id: @member.id).sort_year_date.page(params[:page]).per(10)
   end
 %>