"Tribalism is our most misunderstood buzzword. We've all heard pundits bemoan its rise, and it's been blamed for everything from political polarization to workplace discrimination. But as acclaimed cultural psychologist and Columbia professor Michael Morris argues, our tribal instincts are humanity's secret weapon. Countries, churches, political parties, and companies are tribes, and tribal instincts explain our loyalties to them and the hidden ways that they affect our thoughts, actions, and identities. Rather than deriding tribal impulses for their irrationality, we can recognize them as powerful levers that elevate performance, heal rifts, and set off shockwaves of cultural change. Weaving together deep research, current and historical events, and stories from business and politics, Morris cuts across conventional wisdom to completely reframe how we think about our tribes"--