Hi there
A quick search on Amazon.com is helpful. I puchased the one linked below. Its pocketsize with good colour drawing of over 180 plants and fungi. Descriptions include when to find the plant, where it grows, how they can be cooked, and what parts are good to eat. Most importantly it gives warnings about poisonous plants, or parts of edible plants which are poisonous. There is also a little map of europe for each plant showing thier growing range.
Altogether a good book for its size and weight and not a bad price.
http://tinyurl.com/v8es

Hope this is useful
Joblot