James K. Sebenius specializes in analyzing and advising corporations and governments worldwide on their most challenging negotiations. He is the Gordon Donaldson Professor of Business Administration at Harvard Business School, where he founded the Negotiation unit and teaches advanced negotiation to graduate students and senior executives. He also directs the Harvard Negotiation Project at Harvard Law School. With co-author David Lax, Jim originated 3D Negotiation, a uniquely powerful approach for analyzing and advising on complex negotiations. He co-founded Lax Sebenius LLC, an active firm that offers strategic negotiation advice to clients and designs organizational capability-building programs to improve outcomes in mission-critical negotiations. Sebenius's private sector career has also included years with the Blackstone Group; in the public sector he served in the U.S. government's Commerce and State Departments. From the earliest days of his professional career, he has played key roles in complex negotiations. Peter G. Peterson, co-founder of The Blackstone Group, now the world's largest buyout firm, with $545 billion in assets, stated that "We faced some of Blackstone's most challenging and delicate negotiations during its startup period. Over those early years, we worked daily with Jim, who was very helpful with critical deals at key moments... Jim's approach makes major differences in significant transactions". No less than former Secretary of State, Henry Kissinger, recently (2018) attested to Jim's standing in the negotiation field when he wrote "Given his familiarity with the relevant academic research and extensive experience in high-stakes dealmaking, Jim . . . possesses a deep understanding of complex negotiations...[he] has produced a superb and practical analysis of how to forge worthwhile agreements in complex situations." Since 2001, he has chaired the annual Great Negotiator Award program at Harvard, which has intensively engaged with negotiators such as Richard Holbrooke, James Baker, George Mitchell, and Bruce Wasserstein. He also co-directs a project that has conducted lengthy videotaped interviews with nine former U.S. Secretaries of State, from Henry Kissinger, George Shultz, and James Baker, through to Hillary Clinton, John Kerry and Rex Tillerson, about their most challenging negotiations. Jim often speaks to senior executive audiences about negotiating lessons and insights from the Great Negotiators and Secretaries of State. He is the author or co-author or editor of five books including 3D Negotiation (Harvard Business School Press), The Manager as Negotiator (Free Press), Negotiating the Law of the Sea (Harvard University Press), and, most recently, Kissinger the Negotiator: Lessons from Dealmaking at the Highest Level (HarperCollins). Together with these books, his published output includes more than 250 items including articles, case studies, and negotiation simulations.