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Eduncle Best Answer
The Third Wave is a 1980 book by Alvin Toffler. It is the sequel to Future Shock (1970), and the second in what was originally likely meant to be a trilogy that was continued with Powershift: Knowledge, Wealth and Violence at the Edge of the 21st Century in 1990. A new addition, Revolutionary Wealth, was published, however, in 2006 and may be considered as a major expansion of The Third Wave.