William Sleator was born on February 13, 1945 in Harve de Grace, Maryland. In 1967, he received a BA in English from Harvard University. He mainly wrote science fiction novels for young adults. His first novel, Blackbriar, was published in 1972. He wrote more than 30 books including House of Stairs, Interstellar Pig, The Green Futures of Tycho, Strange Attractors, The Spirit House, The Boy Who Couldnt Die, and The Phantom Limb. His picture book, The Angry Moon, won a Caldecott Award in 1971. He died on August 3, 2011 at the age of 66.