calibre for Mac is a powerful and easy to use e-book manager. Users say it’s outstanding and a must-have. It’ll allow you to do nearly everything and it takes things a step beyond normal e-book software. It’s also completely free and open source and great for both casual users and computer experts. Save time on managing your e-book collection Use it everywhere and with anything Comprehensive e-book viewer Download news/magazines from the web Share and backup your library easily Edit the books in your collection Satisfy every e-book need and get support