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Calibre, an e-book library management program that allows you to organize your entire collection, is completely free. Calibre allows you to convert your books into multiple formats and sync them with all your devices.
KEY FEATURES IN THE BOOK:
Calibre is an open-source, free, and free-of-charge ebook library management software that covers all aspects of library management, ebook conversion, ebook syncing and viewing, as well as ebook editing for all major ebook formats. Calibre's user interface is simple to use and lightweight.