I'm on 360, can I duplicate the book Oghma Infinium? My motives are to keep a copy on my mage's bookshelf, and still read a copy to get the boosts of skills and attributes. Thanks for any help.

Some items just can't be duplicated and I think the Oghma Infinium is one of them.

I had feared as much. I would really like to know for sure, since it's quite a bit of work to just start the quest. If anyone knows...?

The Oghma Infinium is flagged as a quest item, which means it can't be dropped. No dropping means no duping glitch exploitation. It also means that even if you were willing to not use the one copy you get from the quest, you still could not place it on a bookshelf.

Even after completing the quest it's still flagged?

yes

Hmm, well that's unfortunate. Oh well. Thanks for the info everyone