Atheneum Books was a New York City
publishing house established in 1959 by Alfred A. Knopf, Jr., Simon Michael Bessie and Hiram Haydn.
Simon & Schuster has owned Atheneum properties since its acquisition of Macmillan in 1994 and it created Atheneum Books for Young Readers as an
imprint for
children's books in the 2000s.