Detailed plant identification information and an explanation of their place in the world of pollination makes for an informative book, rather than just a pretty one. Of course, the most useful part is probably the section picturing each cultivar of salvia and explaining its type, habit, size, hardiness, origin, and landscape use. Of course, if you live in the cold northern expanses, you might have a moment's jealousy when you see the gorgeous cultivars that thrive in zone 10b. That said, I think I am going to try to incorporate some Salvia caespitosa into my garden this year. Not only is it beautiful, but it's suited to zone 5, and I have been planning a rock garden for a while now.
All in all, it is a beautiful, easy to follow, instructive book that incidentally has a lot of coffee-table value as well.
For more of my gardening book reviews, check out Paisley & Pretties.