When I opened iBooks on my iPad mini the other day, I tapped the Collections button, and selected “Purchased Books” as my filter option, to see what I had in my account that I wanted to read. Oddly, I saw a ton of the same book, over and over, sitting on the shelves.
For some reason, this only happens on my iPad mini. My iPhone only shows one copy of each book, even when I select the same Purchased Books option. Same with my iPad 3. But, it’s still annoying on the mini, so I went online to try and figure out what was going on.
There is a bug here that other users are seeing, as well, and there’s really only one way to “fix it.”
Head into the Settings app on your iPad, and swipe down to the iBooks icon in the left-hand column. Tap the iBooks icon and yo’ll see all the options to the right.
Tap The Show All Purchases toggle to OFF, and then hit the Home button. Now, when you launch iBooks again on your iPad, it won’t give you the option to show the purchased books. When you tap Collections, you’ll only see Books, PDFs, and any other custom collections you’ve created to sort and shelve your epubs or iBooks.
Now, if you want to see what you’ve purchased, tap the Store button at the top of the iBooks shelf, and use the Purchased tab in the iBooks store to see what you can download.
While this doesn’t make the issue go away, it does keep the clutter down, especially if you have a significant number of Books in your Purchased account. Hopefully, this is not happening to you, and if it is, Apple will fix it soon.
Source: Apple Discussions