The Guns of August by Barbara W. Tuchman is a Pulitzer Prize-winning book that delves into the events leading up to World War I. Tuchman provides a detailed account of the political and military decisions made by various nations in the summer of 1914, ultimately leading to the outbreak of war. With meticulous research and engaging storytelling, this book offers a comprehensive understanding of the complex factors that contributed to one of the most significant conflicts in history.