Timothy Ferriss is an American author, entrepreneur, and public speaker. He has helped millions achieve more—in less time. He wrote his first book The 4-Hour Workweek after working 14-hour days at BrainQUICKEN, where he observed some habits we’ve adopted that drain us of our productivity, and authored the noteworthy The 4-Hour Body. Ferriss is an angel investor or advisor to Facebook, Twitter, StumbleUpon, Evernote, and Uber.