"Wild Roots: a forager's guide to the edible and medicinal roots, tubers, corms, and rhizomes of North America" by Doug Elliot, is an intriguing book - it may contain herbal information that you've heard other places, but the personal anecdotes by the author (culled from two decades of herbal wildcrafting) and the excellent black and white illustrations of the underground portion, something I haven't seen offered anywhere else, make it well worth it. The book covers both edibility and medicinal properties of each plant. 9" x 8", 128 pages, index, bibliography, glossary, appendix on harvesting. Call toll free 866.596.9982.