A pocket reference card built from 1,000+ live negotiation sessions. The triggers, the labels, the responses — on something you can actually hold.
The full library. The Kindle is the on-ramp. The manuals are the operating system. The field guide is the cheat sheet you'll carry.
MixMatch. 31 tools. 5 modes. A timer. Free to start. The pocket card is the offline version — the app is the live one.