Mark Murphy is the founder of CommonsWare and the author of The Busy Coder's Guide to Android Development. A three-time entrepreneur, his experience ranges from consulting on open source and collaborative development for Fortune 500 companies to application development on just about anything smaller than a mainframe. He has been a software developer for over 25 years, working on platforms ranging from the TRS-80 to the latest crop of mobile devices. A polished speaker, Mark has delivered conference presentations and training sessions on a wide array of topics internationally.