Short and to the point, focusing on a small handful of common plants in Northeastern America. Unfortunately, they're the common plants that EVERY foraging guide covers, and mostly ones that need significant processing or have a very short window of being non-poisonous. The back section has what might as well be a bulleted list of other plants that are much easier to eat but there's not enough information to be confident in eating them. Of course you want a field guide to ID with certainty before eating anything, but there isn't even enough information to have a moment of recognition in the field. I just read a memoir about growing up in a cult that had better plant guides.
I'm glad I found this for $1 instead of ordering it for full price. I'll keep it but I'm definitely wondering why it's so highly recommended in foraging circles.
An enjoyable guide to foraging. Russ Cohen is quite accessible by email and was happy to answer my questions. He also leads foraging walks in person. It's a great way to see the plants in their environment and gave me a decent boost in my learning curve when I was new to foraging.