Seduction has nowadays its full place in professional relations. In order to make the best use of it, one must know its different facets as well as its main field of action: negotiation. It is by mastering professional seduction and negotiation that it will be possible to know where, when and how to make the difference in the decision-making process. In addition to a theoretical aspect, this book, after an empirical study, highlights the factors to be taken into consideration in order to seduce, and thus influence a decision, namely the gender and experience of the interlocutor.