Leonard Kessler (October 28, 1920 – February 16, 2022) was an American children’s book author and illustrator and centenarian.
Kessler was born in Akron, Ohio and grew up in Pittsburgh, Pennsylvania.
He served in the United States Army during World War II and was stationed in Europe.
Kessler received his bachelor's degree in fine arts from Carnegie Mellon University in 1949.
Kessler wrote and illustrated books for young readers.