The book explores the history and aftermath of the atomic bombing of Hiroshima and Nagasaki in 1945 by the United States. The author delves into the complex relations between the US and Japan leading up to the bombings and the decision-making process that ultimately led to the use of atomic weapons. The book also describes the devastating impact of the bombings on the people and cities of Hiroshima and Nagasaki, including the long-term effects of radiation on survivors. The author further explores the global implications of this event, including the nuclear arms race and the ongoing threat of nuclear war. The book also provides a glimpse into the current state of affairs in these cities in 2022, offering insights into how the bombings have shaped their communities and cultures in the decades since. Overall, the book is a comprehensive and thought-provoking examination of one of the most significant events in human history.