Walrus was pretty cool, though my copy got stolen, it is awesome seeing artist make what ever pops into their head. Besides Katsuya Terada, I can't think of another comic artist publishing a book of just their art with in the last few years. Do know of any

Thanks and sorry planet earth is jerks.

Terada is kind of the king of published sketchbooks.”His alias is Rakugakingu(ラクガキング "Doodle King" as far as other sketchbook books Kim Jung-Gi is amazing .  I think my pal Farel’s delusional is like his version of Walrus. 

I feel like I have a lot of books that fit into the same type of thing but most of my favorites are zines I got from conventions.Check out the stuff from the Peow guys.