I read this book cover to cover, so it reads well - easier than a field guide where I pick and choose what I read. Although not comprehensive in covering all mushrooms (fungi) it helped me place a possible ID on a few species I found on our land last August. I am new to foraging for fungi.
I took many photos of the mushrooms I found last year and want to try to identify them. The only one we tried was the Bear's Tooth Fungi because it does not have a poisonous look alike in North America. The toothed fungi, in general, were not covered in this book. That was okay with me - I had read about them elsewhere.
The photos are stunning, too. Most likely, I'll take some notes from this book to help me with identification this summer - or I'll buy a copy. Yes, I would recommend it as a companion to a more comprehensive but briefer field guide.