Woodcraft and Camping is a book written by George Washington Sears a/k/a Nessmuk and published in the early 1900s. It is a very interesting account of life in the wilderness, and provides much insight for the person trying to enjoy the outdoors. The book is part instructional, and part a recounting of personal experiences. It is a must read for anyone interested in wilderness living.
To the best of my knowledge, the book is public domain, and a copy can be downloaded here, here, and many other locations online.