Mr. Christian Harder
Environmental Systems Research Institute (Esri)
Mr. Christian Harder is a writer and educator specializing in teaching GIS to non-GIS audiences. He is the author, co-author, or editor of many books about the application of GIS including Understanding GIS, The ArcGIS Book, The ArcGIS Imagery Book, and GIS for Science, Volumes 1 and 2. Mr. Harder is also an FAA-certified UAV Pilot and Drone/GIS evangelist.