The Builder's Library by Paul Hanke Win-Win Negotiation Gillette. New York: John Wiley & Sons; 1985; 298 pages; $19.95 hardcover. by Fred E. Jandt with Paul Who among us hasn't occasionally been in a tense, uncomfortable negotiating session in the ongoing architect-owner-contractor drama triangle? Perhaps you've had to ask your boss for a raise. Or perhaps you've had to face a toughbargaining client like one of the owners in Tracy Kidder's House, who insisted that without a last-minute $660 reduction in the bid, there would be no deal. Now, armed with Jandt and Gillette's Win- Win Negotiating, you can enter these situations with the hope, as the book's subtitle says, of "turning conflict into agreement." What is "win-win"