I have ripped some audiobooks to my itunes library and put the book in a playlist. It works fine this way but if you listen to other playlists and return to the audiobook it does not bookmark so I thought putting it into Ibooks would be a much better option.  After spending copious amounts of time trying to move the playlist to Ibooks I have given up and hope you all could help me with this issue.   It could be this is not possible and that is fine, I just want to know.