LEGO Batman: The Visual Dictionary
LEGO Ninjago: Character Encyclopedia
Ultimate Sticker Collection: LEGO Batman
LEGO Friends: Brickmaster
I don't understand what the big deal is with the character encyclopedias, they have great pictures and all, but most of the information is already known by at least 50% of LEGO fans, and I have found several errors in the information too.
I'm still gonna get them though. After all, they are collectors items.