How to sync bookmarks, notes, and collections with iBooks for iPhone, iPad, and Mac
In addition to letting you buy and read ebooks, iBooks lets you make notes, highlight text, save bookmarks, and even organize your books and PDFs into collections. iBooks syncs all this data between all your iPhones, iPads, and Macs so you see the same thing across all your devices. However, if you find that iBooks isn't syncing your data like it should, here's how to enable it!
Full story from the iMore Blog...