Walter Lyon Krudop was born in Elizabeth, New Jersey, in 1966. He had his first painting lesson when he was eight years old and later studied illustration at the School of Visual Arts in New York. He has illustrated a number of books for young readers, including The Good-Night Kiss and Wake Up, Little Children by Jim Aylesworth; Black Whiteness by Robert Burleigh; and Crossing the Delaware by Louise Peacock. He lives with his wife, Sara, in New York City.