Since 2008, I've been the CEO & Founder of DuckDuckGo, the Internet privacy company that empowers you to seamlessly take control of your personal information online, without any tradeoffs. Our private search engine is #4 in the U.S., Germany, Australia and dozens of other countries, answering over 9 billion queries in 2018.I also co-authored Super Thinking: The Big Book of Mental Models (Penguin Portfolio, 2019). Previously I co-authored Traction: How Any Startup Can Achieve Explosive Customer Growth (Penguin Portfolio, 2015). Before DuckDuckGo, I founded other Internet-related companies. My formal education is from MIT (B.S. Physics, '97-01; M.S. from the Technology and Policy Program '03-05). I live in Valley Forge, PA with my wife and two kids.