Roger Fisher teaches negotiation at Harvard Law School. He frequently appears on television as a negotiations expert and is the director of the Harvard Negotiation Project. William Ury, a consultant, writer, and lecturer on negotiation, is a Distinguished Senior Fellow at the Harvard Negotiation Project.
This is by far the best thing I've ever read about negotiation. It is equally relevant for the individual who would like to keep his friends, property, and income and the statesman who would like to keep the peace. -- John Kenneth Galbraith