Jim Henson's Designs and Doodles: A Muppet Sketchbook

Jim Henson: The Biography

Doodling with Jim Henson: More than 50 fun & fanciful artistic exercises to inspire the doodler in you!

Muppets Character Encyclopedia

Imagination Illustrated: The Jim Henson Journal

Jim Henson: The Works - The Art, the Magic, the Imagination

The Muppets Make Puppets: How to Create and Operate Over 35 Great Puppets Using Stuff from Around Your House