These recipe booklets are great for anyone interested in old - fashioned recipes made with electric appliances. To use them, simply flip through the pages to find a recipe that catches your eye. As they're vintage books, handle them gently to avoid further damage to the spines. When not in use, store them in a dry place away from direct sunlight to prevent more yellowing and soiling. And don't worry too much about the stains on the pages, they won't affect your ability to read and enjoy the recipes.