American children's author whose best-known works include Six Innings, Bystander, and the Jigsaw Jones series. He also published the 2013 Scary Tales trilogy.
He grew up in Wantagh, New York as the youngest of seven children.
He began his literary career as a copywriter for the Scholastic Corporation. This position introduced him to prominent works of children's literature and inspired him to write his own juvenile fiction.
He and his wife, Lisa, had two sons and a daughter.
He and New Jersey-born author, Holly Black, both became known for their children's literature.