"Eat the Weeds", if still in print, is good. Kinda funny, too.

And I have always been a fan of Bradford Angier, met him once, before he passed away, showed me his collection of compasses and knives and sat and talked about his life. He also autographed every book of his I owned, plus gave me a couple out of print copies. "Feasting Free on Wild Edibles" is his compilation of 2 prior books.