Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin. He is the author of “Mastering Bitcoin”, published by O’Reilly Media, considered by many to be the best technical guide to bitcoin. As an engaging public speaker, teacher and writer, Andreas makes complex subjects accessible and easy to understand. As an advisor, he helps startups recognize, evaluate, and navigate security and business risks.