"Washington and the Riddle of Peace" by H. G. Wells is a historical account written in the early 20th century. The book comprises a collection of impressions and reflections from a visitor at the Washington Conference, held with the intent of establishing world peace and addressing the issues stemming from the aftermath of World War I. It particularly focuses on the concept of organized world peace and the complexities involved in achieving such ideals amidst political challenges and national interests. The opening of the book outlines the immense significance of the Washington Conference, which could either be a turning point in human history or a failure to avert future disasters. Wells emphasizes the pressing issues that faced world civilization, including economic instability and the failure of peace treaties like the Versailles settlement. His reflections reveal a sense of urgency regarding the necessity for true international collaboration and the prevention of war, critiquing the distractions and trivialities of human behavior that hinder such efforts. Through a blend of personal anecdotes and broader philosophical discussions, the author sets the stage for examining the complexity of achieving lasting peace in a post-war world beset by old animosities and new challenges. (This is an automatically generated summary.)