Here's the trailer for The Adventure Time Encyclopaedia book trailer. The book, which is fantastically weird and fun, was written by my pal Martin Olson, who plays Hunson Abadeer (aka "The Lord of Evil") on Adventure Time.
Martin also wrote Encyclopaedia of Hell: An Invasion Manual for Demons Concerning the Planet Earth and the Human Race Which Infests It, which we featured on Boing Boing in 2011. Both books were designed by Crap Hound zinester genius Sean Tejaratchi.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects