The Gourmet's:
Guide to Mushrooms and Truffles, by Jacqui Hurst (TPB, 1991, $2)
Guide to Dried Fruit and Nuts, by Carole Handslip (TPB, 1991, $2)
Guide to Herbs and Spices, by Mary Trewby (TPB, 1989, $2)
Lots of information, pictures, and recipes here.
Look for this book in the cooking section, avail. 12/28.