This is my go-to guidebook for checking the identity of edible plants. It's also the one I give to wwoofers or enthusiastic volunteers. Its publishing date is 1982 and I have the 2009 paperback edition. I like the feature of bookmark flaps on the front and back cover. Nice for a paperback.
I appreciate that the book is divided into seasonal sections, so that it is easy to find plants that are edible at any given time. Field guides that are difficult to navigate are frustrating and I find this one to be simple and straightforward. There are multiple photos given for many plants which help in identification. It contains all photographs and no illustrations. I would prefer that all the photos were in color but some are black and white. Even with the photos it is helpful to have some knowledge of descriptive terms about leaf shape, etc. to be able to quickly understand the descriptions
The symbol code is pretty easy to use and I appreciate the attention to toxicity and also to preparation methods.