This book covers the history of the Cultural Revolution in Wuhan and related analysis. Wang Shaoguang completed his doctoral dissertation of the same name (in English) in 1989, and the Chinese version of his abridged dissertation, *Rationality and Madness: The Masses in the Cultural Revolution,* was published by Oxford University Press in 1993. a Chinese version was published by The Chinese University of Hong Kong Press in 2009. Taking the Cultural Revolution in Wuhan as the main axis, the author interviewed dozens of participants in the Cultural Revolution, utilizing a large amount of original materials published during the Cultural Revolution. Combining all of this with his own personal experience, he profoundly reveals the masses' participation in the Cultural Revolution during winters, forms and laws, the mechanism of advancement and retreat, and its relationship to the general situation of the whole country.