absolutely excellent, to me this is the only herb book one should need. photography was excellent and all the detail was clear and concise, would that all reference books were so well done. I was especially happy to learn that milk thistle seeds protect the liver so well that one can ingest them, then a deathcap mushroom with no ill effects, and taking it within 10 min of ingestion of the mushroom decreases illness and risk of fatality - mind you not that I plan to run out horking up deathcap mushrooms but this is a handy sort of thing to know and just underscores how incredible plants really are.