Tim Castle and Joel Starr are green coffee importers with Castle & Company, a firm specializing in fine, hand processed artisanal coffees for discriminating coffee roasters. Castle Communications is a related marketing company, specializing in beverages, especially coffee. Tim and his wife, Joan Nielsen, wrote The Great Cofee Book (Ten Speed Press) in 1999. (Joan recently wrote and designed a web site especially for decaffeinated coffee drinkers, DecafDivas.net, that is sponsored by Swiss Water Decaffeianated Coffee Co., a client of Castle Communications.)