TOM BROWN'S FIELD GUIDE TO LIVING WITH THE EARTH by Tom Brown Jnr. 1984 / 272 pages. 

This is the fourth handbook in the acclaimed series by the director of the world-famous Tracking, Nature and Wilderness Survival School. In it he goes beyond survival and unlocks his personal storehouse of experience to share the secrets of adaptation, the single most important environmental skill. 'How to construct your own superbly functional "earthshelter" in any environment, in any season, from any materials. How to make your own tools, weapons, furniture, utensils, clothing, even works of art, from materials plentiful in the wilderness. How to use the plants, animals and earth around you to nurture you both physically and spiritually, as so-called "primitive peoples" have done since the dawn of time.'