The sixth and final part (chapter 32 and on) remains in the story's present, but takes a much darker turn and spends the remaining chapters focusing on the serious and brutal nature of war and life in general. The fourth (chapters 26–28) flashes back to the origins and growth of Milo's syndicate, with the fifth part (chapter 28–32) returning again to the narrative present and maintaining the tone of the previous four. The second (chapters 12–20) flashes back to focus primarily on the 'Great Big Siege of Bologna' before once again jumping to the chronological present of 1944 in the third part (chapter 21–25). The first (chapters 1–11) broadly follows the story fragmented between characters, but in a single chronological time in 1944. The development of the novel can be split into segments.

In 1994, Heller published a sequel to the 1961 novel entitled Closing Time. The book was made into a film adaptation in 1970, directed by Mike Nichols. The novel examines the absurdity of war and military life through the experiences of Yossarian and his cohorts, who attempt to maintain their sanity while fulfilling their service requirements so that they may return home. Most of the events in the book occur while the fictional 256th US Army Air Squadron is based on the island of Pianosa, in the Mediterranean Sea west of Italy, although it also covers episodes from basic training at Lowry Field in Colorado and Air Corps training at Santa Ana Army Air Base in California. It mainly follows the life of antihero Captain John Yossarian, a U.S. The novel is set during World War II, from 1942 to 1944. The separate storylines are out of sequence so the timeline develops along with the plot. Often cited as one of the most significant novels of the twentieth century, it uses a distinctive non-chronological third-person omniscient narration, describing events from the points of view of different characters. He began writing it in 1953 the novel was first published in 1961. Catch-22 is a satirical war novel by American author Joseph Heller.

Catch 22 by joseph heller