calibre - Ebook manager, viewer & converter
Adobe Digital Editions - ebook reader software
FBReader - FBReader is an e-book reader for various platforms. Features:
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
NeeView - Display two images simultaneously
Kindle for PC - There's a problem loading this menu right now.