The book "Kaiser's Memoirs" by Wilhelm II, the German emperor, is a unique source of historical events of the first decades of the 20th century. In this book, Wilhelm II talks about his childhood, youth, political activities and the events of the First World War. He reveals his own views, decisive steps and decisive moments of his reign. The book provides an opportunity to better understand the personality of the emperor, his role in politics and military affairs. "Kaiser's Memoirs" is a valuable document for those interested in the history of Germany and Europe in the first half of the 20th century.