When to Talk and When to Fight is a conversation between talkers and fighters. It introduces a new language to enable negotiators and activists to argue and collaborate across different schools of thought and action. Weaving beautiful storytelling and clear analysis, this book maps the habits of change-makers, explaining why some groups choose dialogue and negotiation while others practice confrontation and resistance. With lucid charts and graphs by Rosi Greenberg, When to Talk and When to Fight is a brilliant new way of talking about how we change the world.