This official art book features 228 full-color pages showing UNDERTALE from the very first concept sketches to the end of development. 

Softcover art book (5.75 x 7.75", 228 pages) 

Art from Toby Fox, Temmie Chang, Gigi D.G. and more

Commentary from Toby Fox on the design and development process

Gold debossed Annoying Dog on the back

Brand new and factory sealed