WindowBlinds - WindowBlinds is a computer program that allows users to skin the Windows graphical user interface.
calibre - Ebook manager, viewer & converter
Cairo Shell - Cairo is a desktop environment for Windows.
FBReader - FBReader is an e-book reader for various platforms. Features:
bbLean - Alternative Windows shell
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.