The book that had the greatest impact on the development of human history was the book by Yuval Noah Harari, author of A Short History of Humanity. " A Short History of Humanity " narrated the history of human beings from the beginning to the modern era, covering human evolution, the agricultural revolution, the industrial revolution, the information revolution, and many important events in modern society. Through in-depth research and vivid language, Harari let the readers understand the context and influence of human history and put forward many enlightening views. Harari believed that the development of human history was a process of constant evolution, in which many events and changes were interconnected. He put forward the theory of "civilization competition", which believed that different civilizations would compete and learn from each other to promote the progress of human civilization. The book, A Short History of Humanity, had a profound impact on the development of human history. It not only inspired people to think about the nature and development trend of human civilization, but also provided important ideas and suggestions for promoting the progress of human society.