A comprehensive guide with recipes, techniques and know-how. The most authoritative guide to making natural, vegetable-based soaps ever written. In addition to basic soapmaking instructions, readers will learn how to use specialty techniques like marbling, layering and making transparent, liquid and imprinted soaps. Includes information on chemistry, ingredients, additives, colorants, scents, and experimenting with fats and oils. 288 pages in a 8 x 8 paperback format. Great as a science unit study!