Calibre is a complete e-book library manager that lets you totally organize your collection. With Calibre you can convert your books to multiple formats, and then sync with all of your devices.
KEY FEATURES INCLUDE:
Library management. Calibre keeps things orderly by creating single entries for books, which contain multiple formats. Calibre also adds tags and comments for better searching.
Format conversion. Calibre's varied conversion options give you support for a wide variety of file formats.
File syncing. Calibre's device drivers will support all of the top devices and e-readers.
Overall, Calibre is a free and open source e-book library management application which covers all aspects of library management, e-book conversion, e-book syncing, e-book viewing and e-book editing for the major e-book formats. The user interface is easy to understand and the application is relatively lightweight.