Apple has announced that iBooks for OS X will be included as part of OS X 10.9 Mavericks. Users will be able to access all 1.8 million iBooks on the Mac. The iBooks for OS X interface will be a two-page layout by default and be totally flat, which means there will be no skeuomorphic pages. Users will also be able to add notes and highlights, with the notes being usable as study cards. These notes, highlights, bookmarks and more will be synced with your iOS device. iBooks for OS X will also sync your reading progress, so you can stop reading on your Mac and pick up right where you left off on your iOS device. You can read more about iBooks for OS X on Apple's Mavericks preview web page.
Apple OS X Mavericks