Book 4 of the "Survey Mapping Made Simple" series. This book covers processing of aerial imagery captured by a drone using Pix4D for rectified orthomosaic, volumes, contours and point clouds. Summit Evolution for stereo modeling is discussed. Quick Terrain Reader, Irfanview, BR Extractor, Google My Maps, Google Earth, PTGui and Final Cut Pro (video processing) are covered to produce surveying deliverable products.