Whirligigs, Adirondack chairs, planters, bird feeders, and barbecue carts are the stuff of this book's 125 or so outdoor building projects. Also included are about a dozen larger-scale projects for decks and assorted outbuildings. Each entry provides a list of materials, photos and construction drawings, and a detailed procedural narrative. An introductory chapter, purporting to survey outdoor building techniques, is too cursory to be of any help. In its discussion of materials, for example, it fails even to mention pressure-treated lumber. Like too many project books, this is neither original nor particularly imaginative and fails to offer any more than the sum of its parts. Bill Demo, Tompkins Cortland Community Coll., Dryden, N.Y.