Originally published in 1989, but updated and revised in 2006 to include recent research, Lise Manniche's Ancient Egyptian Herbal is an informative, easy read, ideally recommended to anyone with an interest in both ancient Egypt and anything to do with plants - cooking, medicine, perfumery, ornamentation etc.
The first half of the book provides an introduction to the topic and discusses the surviving evidence and the ways in which plants were used for the aforementioned uses. The second half of the book is the actual herbal catalogue. The subject is mildly interesting, from my point of view, though not gripping, and it's presented in a clear way. Manniche looks at the uses of each plant in not just ancient Egypt but also Coptic, Hellenistic, Medieval and modern Egypt, and the occasional cross-over reference to known ancient Assyrian remedies also. As a resource, it fulfils its function well. The use of illustrations from the ancient Egyptian world, where possible, also enlivens the text.
All in all, does what it says on the tin. I would have liked the images to have been in colour, and at some point it will no doubt need updating again to account for recent research.