Yaffe, a librarian and camper, offers more than 150 recipes for hikers. Most of them are for dishes that are completely cooked at home and dried in an electric dehydrator (or an oven), then simply rehydrated with boiling water, requiring no further cooking at the campsite. There are also trail snacks and other no-cook recipes, as well as cookies, muffins, and other baked goods. Some of the recipes are vegetarian, while others offer vegetarian (or vegan) options. For larger collections and others where camping and hiking books are popular.