"The Man of Thirty-Ninth" is a parable novel written by the American writer Kurt Vonnegut. In this book, the author shows the world that ended up in the military hell of the Second World War through the prism of the fate of the fighter Billy Pilgrim. The reader travels with him through time and space, observing events that reveal the senselessness of war and the inspiration in human nature. With the help of accurate information, humor and philosophical considerations, Vonnegut provokes the reader to think about the nature of war, human vulnerability and the absurdity of bureaucracy. "The Man of Thirty-Ninth" is not only a story about the war, but also a reflection on the meaning of life and human destiny. This book leaves a mark in the reader's heart, reminding us that the most important thing is to remain human in all circumstances.