Dr. Seuss (person)

His actual name was Theodor Geisel, and he was political cartoonist during World War II. He went on to write arguably the most revolutionary and imaginative children's books ever. He once wrote a book on a bet that he could do so without using more than 50 distinct words. He also created many, many nonsensical phrases and words, and his art for the books was like a cartoony M.C. Escher.
His works include:

• The Cat in the Hat
• The Cat in the Hat Returns
• The Lorax
• And to Think I saw it on Mulberry Street
• Oh, The Thinks you can Think!
• Oh, The Places You'll Go
• The Butter Battle Book
• One Fish, Two Fish, Red Fish, Blue Fish
• The Grinch Who Stole Christmas
• Green Eggs and Ham
• Horton Hears a Who
• Fox in Socks
• The First of Octember
• Yertle the Turtle
• Hop on Pop
• The 500 Hats of Bartholomew Cubbins
• The King's Stilts
• Horton Hatches the Egg
• McElligot's Pool
• Thidwick the Big-Hearted Moose
• Bartholomew and the Oobleck
• If I Ran the Zoo
• Scrambled Eggs Super
• On Beyond Zebra
• If I Ran the Circus
• Happy Birthday
• The Sneetches and other Stories
• Dr.Suess's Sleep Book
• I Had Trouble in Getting to Solla Sollew
• The Cat in the Hat Songbook
• I Can Lick 30 Tigers Today and Other Stories
• Did I Ever Tell You How Lucky You Are?
• There's a Wocket in my Pocket!
• Great Day for Up

Posthumuosly:
• Daisy-Head Mayzie
• Hooray for Diffendoofer Day