Printouts to help you play the game, such as Spell Summaries, Verbal Cheat Cards, and the Smithing Reference Sheet.
All In-Game books created by players, such as Manuscripts, Tomes, etc., are required to have an OOG disclaimer in them. This PDF file has the disclaimer pre-printed, so that it can easily be cut out and pasted into a book during creation.
A handy summary for Smiths, two sides of one sheet of paper. This includes the changes for March 25, 2014.
"The most important thing to know when dealing with negative energy beings is... Breakfast."
-Acolyte Leilah Laurent-Belmont, at the arrival of pancakes and eggs