Dr. Seuss, also known as Theodor Seuss Geisel, used a variety of pen names throughout his life and career.
The most well-known of these was his signature “Dr. Seuss.” This name has been synonymous with his classic children’s stories since they became popular in the 1940s.
He also wrote under a variety of other pen names, the most notable of which include:
• Theo LeSieg: Geisel’s first pseudonym. He used this name to publish some of his early books such as In a People House and The Tooth Book.
• Rosetta Stone: Geisel wrote six stories under this pen name in 1956.
• Theo. K.aldis: Geisel used this pen name while writing some of his more adult work such as The 7 Lady Godivas and You’re Only Old Once.
• Theophrastus Seuss: Geisel created this name after considering the possibility that the Dr. Seuss name was becoming too familiar with children.
• Mr. Geisel: Geisel began to use this pen name in 1990 to identify his work that doesn’t fit with his Dr. Seuss persona. Examples of books released under this name include Daisy-Head Mayzie and Hooray for Diffendoofer Day.
In addition to these pen names, he had a few others he used in his professional life. He used the names “D.B. Ogden” and “L.P. Heaverly” in his advertising work, and “Dr. Theophrastus Seuss” in some of his public appearances.
In total, Dr. Seuss created more than two dozen pen names throughout his life and career.
For more information on Dr. Seuss's many pen names, you can check out this website:https://www.drseuss.info/pen-names/.