Though this book claims to be a Guide to Succulent Plants of the World, it is more of a tease, offering minute amounts of information on a small fraction of the world's succulents. However, what single book could possibly do justice to the world's succulents? It certainly would not work as a field guide with 95% of most species missing from it.
But I have to give this book kudos for having a lot of excellent photos of habitat plants. And not just any plants, but dozens and dozens of plants not normally found published in any other texts. I find it very entertaining to thumb through and dream about seeing these plants in nature. And it certainly has introduced me, a moderately experienced succulent collector, to a lot of species I had never seen either in shows or in print. For that alone, this book is well worth having in ones collection. But as a source of usable information about succulents, it does not enlighten me much if at all. It might be a good introductory text for those just getting into succulents, but then it may give the inexperienced reader the suggestion that they can aquire these plants they see in the photos (in most cases, most of the photographed plants are difficult to find, and many to grow as well). Some genera are emphasized far more than others, with a pretty good section on Crassulas, but a relatively weak one on Dudleyas and Aeoniums.
I do recommend this book and think it would be an excellent addition to any collectors' library, both experienced and new, but for different reasons.