アルビン・トフラー
In 1983, Greenly left his position as a marketing vice president of Avon Products to become a freelance marketing consultant and writer. In an article for The Futurist magazine (March–April, 1987), Greenly credited the Alvin Toffler book, "The Third Wave", as being a catalyst in his decision to change his life and become an active part of the Information Age.