Mark LewinMark Lewin has been developing, teaching, and writing about software for over 16 years. His main interest is GIS and web mapping. Working for ESRI, the world's largest GIS company, he has been a consultant, trainer and course author, and a frequent seaker at industry events. He has subsequently expanded his knowledge to include a wide variety of open source mapping technologies and a handful of relevant JavaScript frameworks, including Node.js, Dojo, and JQuery. Mark now works within Oracle's MySQL curriculum team, focusing on creating great learning experiences for DBAs and database developers, but remains crazy about web mapping. Read More Read Less