Theodor Geisel

Theodor Seuss Geisel (March 2, 1904 - September 24, 1991) was a children's author and illustrator, and also commercial cartoonist, best known by his penname, Dr. Seuss'. Taking his professional name from his mother's maiden name, Seuss wrote such books as To Think I Saw It on Mulburry Street and The Cat in the Hat. His writing was distinguished by his use of complex rhyming schemes and elaborate character/creature names, such as the Sneetches or the Oobleck, and his illustration style was highlighted by his trademark "horse-shoe" eyes for characters and teetering, elliptical towers and loops in architecture. All of these elements were incorporated by The Jim Henson Company into the series The Wubbulous World of Dr. Seuss, which made use of many of the characters created by Geisel (The Cat in the Hat, Horton the Elephant, The Grinch, Sam-I-Am, and others), as well as creating new characters and landscapes by melding the Seuss style with the Muppet aesthetic.

Trivia
The editor in chief for Seuss's Beginner Books series was future Muppet designer Michael K. frith, who also illustrated the 1975 book Because a Little Bug Went Ka-choo]], written by Geisel under another pseudonym, Rosetta Stone.