Book excerpt: Handy for commercial producers as well as backyard gardeners, this classic guide for growers and sellers of niche market produce provides detailed information about growing specialty crops that are growing in popularity among consumers. Includes 63 crop sheets-from arugula to radicchio, basil to thyme, prickly pear to tomatillos, variety and heirloom tomatoes. Includes market information, resources, and a glossary of Asian vegetable names.