Getting to yes by Roger Fisher & William Ury

"If you're looking for a book that will teach you how to negotiate effectively and reach mutually beneficial agreements, I highly recommend Getting to Yes.

This bestselling guide has been a go-to resource for millions of readers for over thirty years. It is based on key principles such as avoiding the temptation to bargain over positions, separating the people from the problem, and insisting on objective criteria. With its straightforward and proven approach, Getting to Yes will help you navigate the negotiation process and achieve your goals."