About the Authors

Eric Pimpler is the founder and owner of GeoSpatial Training Services (geospatialtraining.com) and has over 20 years of experience in implementing and teaching GIS solutions using Esri, Google Earth/Maps, and open source technology. Currently, he focuses on ArcGIS scripting with Python and the development of custom ArcGIS Server web and mobile applications using JavaScript. He is the author of Programming ArcGIS 10.1 with Python Cookbook. Eric has a bachelor's degree in geography from Texas A&M University and a master's degree in applied geography with a specification in GIS from Texas State University.

Mark 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 speaker 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.