I like many of its features, like you can rate book with stars, it has few library view options(show in bigger cover page or smaller cover page with authors name, other ebook reader apps Im using only has one option,it either shows only with a very small cover page which you cant really sees what it is or without the author name you have no option to sort it with authors name)...etc. but I will love it even more if it can add some more features like adding books via wifi (Im using Dropbox to add books now which I have to select book one by one to add it? And Im having difficulty using the Calibre), with an option to empty my library with one click, now I have to delete it one by one...basically I have to add or delete my books one by one ...it can be just because I dont know how to use the app.?!