Foraging and Feasting
I got a copy of this book for Christmas, and I love it! Foraging and Feasting - A Field Guide and Wild Food Cookbook. It's not quite like any of my other books. There are detailed descriptions, including beautiful illustrations, of 50 wild edible plants and recipes using those plants. http://www.botanicalartspress.com/
There are some videos by the author at this page http://www.botanicalartspress.com/media.