About Robert Leighton Puzzability was founded in 1966 by Robert Leighton, Mike Shenk, and Amy Goldstein, expert puzzle makers who create a twisted brand of puzzles for both kids and adults. Books by Robert Leighton What's Going on Down There? A Boy's Guide to Growing Up by (author) Karen Gravelle illustrated by Robert Leighton Ages 8 to 12 Grades 3 to 7
