Tim Ferriss

Tim Ferriss Timothy Ferriss (born July 20, 1977) is an American author, entrepreneur, self-proclaimed "human guinea pig", and public speaker.

He has written a number of self-help books on the "4-hour" theme, some of which have appeared on the ''New York Times'', ''Wall Street Journal'', and ''USA Today'' bestseller lists, starting with ''The 4-Hour Workweek''.}}

Ferriss is also an angel investor and an advisor to Facebook, Twitter, StumbleUpon, Evernote, and Uber, among other companies. Provided by Wikipedia
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by Ferriss, Timothy.
New York : Crown Publishers, c2007.
by Ferriss, Timothy,
Boston : Houghton Mifflin Harcourt, [2017]