This book explains why the negotiation process is not finished when a deal is signed and elaborates on how to get better deals when focusing on sustainable collaboration rather than on the deal itself. This book is a pioneer in showing the extent of the negotiation process. It makes the case that whenever negotiators assume that the negotiation is finished when a deal is signed they dive into a pitfall. What follows the signature of a deal is the enforcement of the contract which is when all surprises and difficulties unfold. By assuming that the negotiation was over, companies are taken by surprise by all the features of the after-deal and often improvise their solutions because there is urgency what leads to higher levels of stress and risks. This book shows how to shift from stressful, hazardous and confrontational situations to enjoyable, comfortable and future oriented negotiation strategies.