If you're looking for an edible plant book, this is my top pick of everything that I've come across. It's a great quick start, and has a super helpful section not found in many other plant ID books – which I describe in this video. I also detail a second book that I feel is very much worth a look in the second half of this piece.
The two best books on wild plant identification can be purchased with these links.
Botony in a Day:
Edible Wild Plants:
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