NATIONAL BESTSELLER - Discover the game-changing theory of the cycles of history and what past generations can teach us about living through times of upheaval--with deep insights into the roles that Boomers, Generation X, and Millennials have to play--now with a new preface by Neil Howe. First comes a High, a period of confident expansion. Next comes an Awakening, a time of spiritual exploration and rebellion. Then comes an Unraveling,...