Mark Jeffrey is an award-winning serial entrepreneur and author with Harper Collins. He has co-founded five internet companies and written eight books. Most recently, Mark founded Guardian Circle and the $GUARD token for global decentralized emergency response (One of FAST COMPANY's 'World Changing Ideas' 2018; Winner: CoinAgenda, d10e, LAUNCH Festival; Partner: XPRIZE Foundation; Featured in TRUST MACHINE film (2018)) He is also an early pioneer of blockchain technology, having published BITCOIN EXPLAINED SIMPLY (2013) and THE CASE FOR BITCOIN (2016). His previous companies include The Palace (backed by Time Warner, Intel and SoftBank; sold with 10 million users), ZeroDegrees (a business social network sold to InterActiveCorp / IAC in 2004 with 1 million users) and ThisWeekIn. He was the founding CTO of Mahalo / Inside.com (backed by Elon Musk, Sequoia, Mark Cuban and others). Mark also worked with Travis Kalanick (CEO Uber) on his first company Red Swoosh. Mark was one of the first people ever to serially podcast a novel: MAX QUICK: THE POCKET AND THE PENDANT originally received over 2.5 million downloads in 2005. Mark Jeffrey holds a BS in Computer Science from the University of New Hampshire. On Twitter, he is @markjeffrey.Read more Read less
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