Prolific writer of books and periodical articles on history, feminism, social change and more, Rebecca Solnit has created an encyclopedic treatise on walking entitled Wanderlust: A History of Walking. She does have a chapter on the physical reasons humans can walk and the resulting superiority such an evolution in our species has afforded us, but the vast majority of her book deals with the psychological and spiritual (if you will) effects walking has had on our ancestors and currently has on us.
