"Not speak is already tell something - Hostage Negotiation Rules"

This book contains the basic rules and at the same time some of the most innovative methods dictated by "the negotiatior" to bring the hostage back home. Negotiation is like a Chess Game, where the slightest mistake, is the risk that may kill a person. Negotiation is not an option. It does not mean to stop and see what is happening or whether things may sort themselves out in the end.