In this charming little book, Thoreau treats his subject as if it were a walk itself. As he wanders, so do his thoughts. Thoreau walked both for exercise of mind and body and as a way of exploring his inner and outer worlds.By Henry David Thoreau. Walking, now again considered to be an important form of exercise, was the activity from which Thoreau examined man's relationship with nature. 4 3/4 x 6 5/8. 64 pp. Paperback.