Reading Maps (Dr. Paul Riffel). 72 pages, an introduction to reading maps by comparing them to color stereo air photos (9 in this book) of the same area. Text discusses and explains map symbols, scales, contour lines, coordinates and direction, and air photo interpretation. It also covers topics such as relief, landforms, and land cover, and provides questions and activities for deeper learning. With a comprehensive approach to understanding maps, you'll have the skills you need to read any map.