Are you a good negotiator? You may not be as good as you think. The world is one big chessboard, and everyone is moving their pawns. The best negotiators make the best leaders. They influence more. They achieve more. They earn more. The ability to negotiate can be the difference between success and failure. Negotiation skills have never been more valuable in today's global, complex, and interconnected world. For those who don't play the puzzling rules of influence, they are at a disadvantage when negotiating. Ludovic reveals the secrets behind successful negotiation and influence and highlights the missing factors that impact outcomes. He captures the essence of negotiation and provides a timeless and invaluable resource to all negotiators. Moving beyond the usual books on negotiation, The Master Key: Unlock Your Influence & Succeed in Negotiation offers a fascinating and cohesive mix of scientific knowledge, business practice, self-care, and history. Solidly researched, surprising, and compelling, this book will empower readers with a distinct approach on negotiation and influence.