Negotiation Genius brings together decades of research on how negotiators claim and create value. Two ideas are especially useful.
The first is investigative negotiation: approach a negotiation like a detective, and find out why the other side wants what it wants. That is the mindset of the Explorer in the NQ® model.
The second is the use of differences. Parties who see the future differently can build a contingent agreement, in which the outcome depends on what actually happens, instead of arguing over whose forecast is right. This is a clear example of the second key, unlock hidden value. The book is also strong on the biases that lead negotiators astray, including the assumption that the pie is fixed.