Select where you stopped the readings of his books with Marker Books.Make the phone, the markings of the books you read!Save space, paper, and never miss reading the markings of your favorite books! Track the progress of the readings of all his books with Marker Books, and save the list the books youve read or will read as a mobile virtual bookshelf!-------------------------------------------------- --------Who never lost the page I was reading a book?Are you the kind of person who reads many books at once, or have many books to study, and then have to arrange many bookmarks?Do you like to view the progress of their readings?The Marker Books solves these problems, this is an application to facilitate the organization of their readings.You add a book she is reading or will read: 1 - Filming the book…... 更新内容： 提升了稳定性。