Leonard S. Marcus

Leonard S. Marcus (born December 11, 1950) is an American author and expert on English language children's literature. Marcus has been a critic for several publications including ''Horn Book'' and the New York Times Book review. Born and raised in Mount Vernon, New York, he attended Yale University (Class of 1972) and was editor of the Yale Literary Magazine.

Marcus was married to children's book author and illustrator Amy Schwartz from 1990 until her death in 2023. The couple had one son.'''' Provided by Wikipedia