This is my favourite ebook application for studying chess with "ChessDB" . Left page you have the text, right the animated chess diagrams illustrating the purpose (you can go backward forward into variations). So for those you never read any chess book because of having to know 64 squares by heart this is going to make it easy to improve. This application comes with "Chess Fundamentals" from Rahul Capablanca for free , which is already a good reason to get it , as you can buy the real book for 20€ in any chess books shop... I bought Silmams "Comprehensive Chess Endings" on my iPad , and really enjoy it, I had the real book actually, but it was too much work to visualise the examples before this application came out... I really think that this way of reading is the future of chess literature . I just hope more books are going to get released on this, as for now the choice is a little poor... PS. I have a suggestion, why not putting the chess variations into a different colour than the main line (in red for example, for lines and pièces). Also, for those who have an iPad and an iPhone, its possible to get a book you have bought on your two machines without any extra paying with the option share your downloads I have a complain to do about your progression in a book, that is lost very often, you have to find again which page in the book you were! Is it done on purpose ? Possible as you find yourself on the Bookstore (you only need a click to buy a book , at 14€!, so be carefull) every time. No global view of your position in the book is given .