A director at MIT's Sloan School, Senge here proposes the ``systems thinking'' method to help a corporation to become a ``learning organization,'' one that integrates at all personnel levels indifferently related company functions (sales, product design, etc.) to ``expand the ability to produce.'' He describes requisite disciplines, of which systems-thinking is the fifth. Others include ``personal mastery'' of one's capacities and ``team learning'' through group discussion of individual objectives and problems. Employees and managers are also encouraged to examine together their often negative perceptions or ``mental models'' of company people and procedures. The text is esoteric and flavored with terms like ``recontextualized rationality,'' but the book should help inventory-addled retailers whom the author cites as unaware of their customers' desire for quality. Macmillan Book Clubs selection. (Aug.) (c) Copyright PWxyz, LLC. All rights reserved