This is a good book, covering all the species of the Mediterranean coast (most guides just cover a selection of species).
The book is organised by plant family, which may be a drawback for non-botanists, but the colour plates are good enough to track down the right bit of the book to investigate further.
The descriptions themselves are simple and clear, and a helpful feature in the margin is the line drawings which help clarify key identification features further.
This is a great book. The only improvement I could think to make would be to add colour photos and perhaps some description of distinct habitats and their flora communities.