It can be hard to try and write a book about an MMORPG - the game often changes before the ink is even dry. The latest Prima guide was written along with us during the last few months, though, so it's safe to say this is the best, most up to date guide out there. (You don't need to have bought the actual Epic Edition if you've been getting the expansions as they came out - just consider this the best possible guidebook upgrade.) My one complaint is that it's a lot bigger than the other guides Prima has done for us, and does not match the others on my shelf. Yes. I am quite aware of how pathetic I am, thanks. I buy all of the Discworld books in paperback for the same reason. But enough about me, check out the Epic Edition Prima guide -

http://estore.primagames.com/eguide.aspx?prodid=ME2149&AffiliateID=XXW2RKE0Q8