Scida is an e-book library management app that helps you organize your mobi/prc/azw e-books on your Mac and copy them to your Kindle. The following Kindle devices are supported: Kindle Keyboard (Kindle 3), Kindle 4, Kindle Touch, Kindle black (2012), Kindle Paperwhite. NOTE: 1) Only .mobi, .prc and .azw e-books are supported 2) The following Kindle devices are NOT supported: Kindle DX, Kindle Fire tablets, first and second generation Kindles 3) Scida does not overwrite your e-book files therefore author & title changes made within Scida might not appear on your Kindle device Library management features: • Import your .mobi, .prc and .azw e-books to your Scida Library • Import your existing e-book folders (all supported books in the folders and subfolders will be detected and added to your library) • Create collections within your library & add books to them Kindle management features: • Scida auto-detects if a supported Kindle device is connected • Browse the supported e-books on your Kindle • Import books from your Kindle to your local library • Send books from your local library to your Kindle • Get usage information about your Kindle Collection management on certain Kindle devices: • Only available on Kindle Keyboard, Kindle 4 and Kindle black (2012) • Create, edit and delete collections on your Kindle • Add and remove books to your Kindle's collections • IMPORTANT: Your Kindle needs to be rebooted after modifying the collection structure