Jimmy Song is a Bitcoin developer, educator and entrepreneur. He's a programmer with over 20 years experience, an open source contributor to many different Bitcoin projects and the author of Programming Bitcoin from O'Reilly, The Little Bitcoin Book, Thank God for Bitcoin and BItcoin and the American Dream. Jimmy has been a lecturer at the University of Texas, an expert witness in legal cases involving Bitcoin and is an advisor to multiple companies. Jimmy writes a weekly newsletter, Bitcoin Tech Talk and has a podcast Bitcoin Fixes This.