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, ...
