Useful little book. The first half introduces perennial vegetables as a class of plant and goes over various ways to design them into your garden.

The second part was more interesting to me. It is a catalogue of plant profiles - the kind you end up referencing for years. What I especially liked was how Toensmeir organized the plants by family (eg Alliaceae: The Onion Family, Asteraceae: The Aster Family, etc). This makes the reference more practical because it guides one's design thinking.

I recommend this for gardening book enthusiasts. It is nicely produced and clearly organized. However, there just isn't too much new information for the experienced gardener.