Talented baker Purdy (A Piece of Cake, LJ 8/89) is the author of another low-fat dessert book, Have Your Cake and Eat It, Too (Morrow, 1993). Unlike Have Your Cake, her new book includes all sorts of desserts: Glazed Ginger Tartlets, Mississippi Mud Pie, and more. Each recipe includes a section explaining exactly how Purdy lowered the fat from the prototype. Although a few have close to 30 percent calories from fat, or even slightly more, most have far less. Despite Americans' obsession with fat, many of us would rather have just a small piece of one of Purdy's indulgent full-fat desserts than a generous wedge of one of her newer low-fat creations. However, for those seeking recipes for low-fat sweets, this collection is one of the best.