Today just about everything we've known and relied on (our natural environment, economy, societies, cultures and institutions) is changing dramatically--too often for the worse. Without radical new approaches, our planet will become unrecognizable as well as poorer, more violent, more authoritarian. The author calls on his knowledge of complexity science, of how societies work and can evolve, and of our capacity to handle threats, to show that we can shift human civilization onto a decisively new path if we mobilize our minds, spirits, imaginations and collective values. Commanding Hope marshals an argument for reinvigorating our cognitive strengths and belief systems to affect urgent systemic change, strengthen our economies and cultures, and renew our hope in a positive future for everyone on Earth.