The culture code: the secrets of highly successful groups

Introduction: When two plus two equals ten --

Skill 1. Build safety --

The good apples --

The billion-dollar day when nothing happened --

The Christmas truce, the one-hour experiment, and the missileers --

How to build belonging --

How to design for belonging --

Ideas for action --

Skill 2. Share vulnerability --

"Tell me what you want, and I'll help you" --

The vulnerability loop --

The super-cooperators --

How to create cooperation in small groups --

How to create cooperation with individuals --

Ideas for action --

Skill 3. Establish purpose --

Three hundred and eleven words --

The hooligans and the surgeons --

How to lead for proficiency --

How to lead for creativity --

Ideas for action --

Epilogue.