calibre - Ebook manager, viewer & converter
CDisplay Ex - CDisplay Ex is the most used comic book reader.
Icecream Ebook Reader - Ebook Reader by Icecream Apps allows to read ebooks in several formats (EPUB, MOBI, FB2 and others). Download EPUB Reader for Windows.
YACReader - Download YACReader for your platform. Windows, Linux, MacOSX. And enjoy you comic books cbr cbz with the best comic reader.
Adobe Digital Editions - ebook reader software
Tachiyomi - A free and open source manga reader for Android.