Edward R. Dewey, as chief economist in the Hoover Administration, was tasked by President Hoover to figure out what caused the 1929 stock market crash and ensuing depression. In the course of his extensive investigations, he became convinced that something important was missing from our collective knowledge of how economies and societies work-a working knowledge of cycles. He was joined in his quest to establish a "science of cycles" by other leaders of his time, including Ivy League scientists, Smithsonian Directors, Industrial CEOs, Ambassadors, and political leaders. First published in 1971, Cycles: The Mysterious Forces that Trigger Events was Dewey's answer to President Hoover's question and to many more questions which had arisen from his decades of research. Are there cycles in nature? In war? On Wall Street? In the universe? In you? Are cycles across different phenomena aligned with each other? Find out in this compelling book! You can also learn more about how Dewey's work continues today at cycles.org.