Long Live the Glorious May 7 Directive, published in 1971, is one of the key propaganda photobooks of Chairman Mao Zedong’s infamous Cultural Revolution. Illustrated with both color and black-and-white photographs taken by uncredited photographers, the book extolls the virtues of Mao’s communist ideology and purports to document the joyful, industrious effects of these ideas in action.In Long Live the Glorious May 7 Directive, smiling workers and peasants read together from Mao’s “Little Red Book” of quotations, stalwart soldiers march in unending ranks and Chinese fighter pilots conquer the open skies. Of course, history remembers the realities of Mao’s Cultural Revolution quite differently.Long Live the Glorious May 7 Directive is now extremely rare; Errata Editions’ Books on Books 20 presents this fascinating volume in its entirety with essays by Liu Ding, Carol Yinghua Lu and Shuxia Chen.