Libby by Overdrive is an app that lets you discover local library ebooks and audiobooks. You can borrow these books instantly, for free, using your mobile device. You’ll need a library card and local library to search, sample and borrow books. Finding and borrowing a book would take only a few taps. Also, Libby comes with an integrated ebook reader and audiobook player. You can even send the books borrowed to your Kindle device for reading. With Libby, you can use multiple library cards and sign in to various libraries.