This is the perfect app to read ePUB and PDF books on your Android device. It supports all major formats and is compatible with most ebooks that you can find in a library. You will not have to worry about compatibility, as this app will take care of it for you.

You can even read books that are protected by Adobe Digital Rights Management (ADRM), which is used by most major booksellers. If your book is protected by ADRM, you will be able to enjoy it in this application.

It is free, so you don't have to worry about paying a penny.