Catch-22 is a satirical novel by the American author Joseph Heller. He began writing it in 1953; the novel was first published in 1961. It is set during World War II from 1942 to 1944.

The novel follows Captain John Yossarian, a U.S. Army Air Forces B-25 bombardier. Most of the events in the book occur while the fictional 256th Squadron is based on the island of Pianosa, in the Mediterranean Sea, west of Italy. The novel looks into the experiences of Yossarian and the other airmen in the camp. It focuses on their attempts to keep their sanity in order to fulfill their service requirements so that they may return home.