Getting to Yes, written by Roger Fisher and William Ury, is a classic book on negotiation and conflict resolution. It offers a principled approach to reaching mutually beneficial agreements without compromising one's interests. The authors introduce the concept of principled negotiation, which focuses on separating people from the problem, focusing on interests rather than positions, generating multiple options, and insisting on objective criteria. This book provides valuable insights and practical techniques that can be applied to various business conflict scenarios, helping professionals become more effective negotiators.