Getting to Yes: Negotiating an agreement without giving in Written By: William Ury, Roger Fisher

The world's bestselling guide to negotiation.
Getting toYes has been in print for over thirty years, and in that time has helped millions of people secure win-win agreements both at work and in their private lives. INcluding principles such as:
Don't bargain over positions
Separate the people from the problem and
Insist on objective criteria
Getting to Yes simplifies the whole negotation process, offering a highly effective framework that will ensure success.
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