Depending on his skill level here are some I like
Northern Bushcraft (re-released as Bushcraft) by Mors Kolchanski (sp?)
Survive by Les Stroud
The survival handbook by Ray Mears
Ultimate guide to wilderness living by John & Geri McPherson
Edible wild plants by Thomas S. Elias & Peter A. Dykeman
I will see what else I can think of