Step by step, working from known to unknown, this is a basic course in map reading which others than soldiers will find interesting. Shape-contour-form-sketching details-profile maps-terminology -- recognition of factors (natural features, contour lines, ridge lines, streams, etc.) -- conventional signs and military symbols -- language of war. Then -- against this foundation, the grid system for practical use in identifying locale -- the meaning and application of scale -- compasses, kinds, use, adjustments, substitutes. Finally, air photography, Probably this is ABC to men who have had courses in the subject, but it should be very valuable to those who may in emergency have need of this knowledge. The book is illustrated, step by step -- and an envelope at the back contains several types of maps for illustrative purposes and testing of what the book teaches.