Be Expert With Map and Compass by Bjorn Kjellstrom
Now several editions beyond its introduction in 1955, Be Expert With Map and Compass is still an excellent reference book for learning map and compass skills. Some of the photos and illustrations are a little dated, but the information has been kept current.
Bjorn Kjellstrom was one of the inventors of the Sylva orienteering (or baseplate) compass, and was instrumental in the foundation of the sport of Orienteering. A third of this 220 page book is dedicated to the sport, which has been steadily growing over the past few decades. There is also a section on wilderness navigation, but the bulk of the book focuses on learning how to use a compass.
Beginners and intermediate compass users will benefit most from Be Expert With Map and Compass, and if you are thinking of getting involved in orienteering, this book is the authority on the sport, as the subtitle, The Complete Orienteering Handbook, suggests.