calibre - Ebook manager, viewer & converter
Apple Books - The all-new Apple Books has been redesigned to make finding, reading, and listening to books a beautiful, effortless experience on iPhone and iPad.
FBReader - FBReader is an e-book reader for various platforms. Features:
Open Library - The ultimate goal of the Open Library is to make all the published works of humankind available to...
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
The Book Depository - The Book Depository (Guernsey) is the UK's largest dedicated online bookseller, offering the...