Theodor Seuss Geisel in real life, Dr. Seuss was an American cartoonist, poet and writer with an estimated net worth of $11 million in 2012. Dr. Seuss was also recognized for his other pen named such as Theo LeSieg, Rosetta Stone, and Theophrastus Seuss.

Theodor Seuss Geisel was born on March 2, 1904 in Springfield, Massachusetts, U.S. At age 87, he died on September 24, 1991 in La Jolla, California, U.S. From 1968 until his death, he was married to Audrey Stone Dimond. He was previously married to Helen Palmer Geisel. He never had a child of his own.

Throughout his entire career as an author and writer, Dr. Seuss has written a total of 46 books. Among his most celebrated and bestselling books include Green Eggs and Ham, One Fish Two Fish Red Fish Blue Fish, Horton Hears a Who!, The Lorax, How the Grinch Stole Christmas!, Horton Hatches the Egg, and The Cat in the Hat.