In the third edition of this excellent reference, the Seed Savers Exchange has provided a very useful tool for nurseries and gardeners to locate sources of heirloom fruit, nut and berry varieties. But it is much more than just a sourcebook, as there are brief descriptions of each fruit variety and indications of how rare or threatened each variety is based on the number of sources. Nursery operators and fruit gene bank managers will find this book to be indespensible!