This is a wonderful aide and I'm so glad I ordered it!. It is beautifully photographed, includes comments about many cultivars within a species, and also includes zone listings, which I find particularly helpful since I have a Northern garden!
The only downside is the size of the text (my age is showing), but there is a tremendous amount of information contained here. Just have your magnifying glass handy if you have problems reading small print.
good book for basic looking up information about trees and shrubs. From my point of view, way too superficial and way too many entire genera left out. But one of the better attempts for a book that has so many color photos (photo quality is great, by the way).
Other than photos:
Pluses: rates every plant by USDA zone (too bad we can't universally adopt the Western Garden zone system- much more accurate).
Covers many species other similary sized books seem to gloss over or skip entirely
Includes a lot of synonyms in the discussion
All in all, a great book and I find it very useful. However, if you are going to a tropical country, you will find it falls way short... obviously geared towards what you often find in the mainland US (so if you live in Hawaii, save your money and find something on tropical trees and shrubs).