This is a biography of an incredible life. Louie Zamperini was a terror as a young boy who channeled his energy into becoming an Olympic champion as a youth. He was a bombardier during World War II and survived in a plane that was shot, only to be lost at sea later when a plane malfunctioned. He suffered terribly in a POW camp in Japan while the world thought he was dead. The violence is hard to read at times, but it is written factually and unemotionally. 

After the war, Louie was an emotional wreck and his life was nearly ruined until an encounter with Christ brought peace. I found it amazing that he lived to a ripe old age after all that he suffered and was healthy and active in his later years. This is a long, intense book, written on at least a 9th-grade level. It starts slowly but the bare facts become riveting. It has a moderate amount of bad language and mature content but is never sexually explicit. There is also a young adult version of the book--https://amzn.to/3KWTbcU.