Timothy Ferriss is a start-up angel investor Twitter, Posterous, RescueTime and others, blogger and entrepreneur. Tim's best-known written work is The 4-Hour Workweek, which had been sold into 35 languages and reached #1 on The New York Times, BusinessWeek and The Wall Street Journal bestseller lists. On May 3, 2009, it celebrated its 2nd straight year on The New York Times business bestseller list since its publication on April 27, 2007. Tim is a Guest Lecturer in High-Tech Entrepreneurship and Electrical Engineering at Princeton University since 2003. Other education-related interests includes social media-based fundraising experiments, such as LitLiberation, which outraised television host Stephen Colbert 3-to-1 with no fixed costs. Most recently, Tim used Twitter as a distributed tool for gathering data on post-campaign donations (see Tweet to Beat). Tim is on the advisory board of DonorsChoose.org, Evernote, StumbleUpon, Trippy, about.me, TaskRabbit and Uber. Tim has been invited to speak at some of the world’s most innovative organizations, including Google, MIT, Harvard Business School, Nike, PayPal, Facebook, The Central Intelligence Agency (CIA), Microsoft, Ask.com, Nielsen, Princeton University, the Wharton School and the Stanford Graduate School of Business. Tim has also been invited to speak and keynote at world-renowned technology summits including EG, FOO Camp, E-Tech, Supernova, LeWeb, and the Web 2.0 Exposition, where he shared the stage with figures like Eric Schmidt, Chairman of the Board of Google, and Jeff Bezos, Founder and CEO of Amazon. Tim received his B.A. degree from Princeton University in 2000, where he studied in the Neuroscience and East Asian Studies departments.