Johnstone's "Impro". It's about improvisational theater, and mainly meant for people learning improv. But the section on status transactions helped me see a lot about how we express those primate dominance dynamics. There's also great material on the nature of creativity.
"Getting to Yes" is a great book about business negotiation, but is lessons about shifting discussions from zero-sum to positive-sum are things I use a lot.
Braitenberg's "Vehicles: Experiments in Synthetic Psychology" is a way of thinking about psychology (and our inference of mind) by examining imaginary robots.
"The Toyota Way" and other books on Lean Manufacturing are about running extremely effective manufacturing operations. But they have deeply changed how I think about systems of making software and running businesses. Other great books in this category include "Toyota Kata" and "Principles of Product Development Flow".
"Crossing the Chasm" is about how tech products get adopted. But its mindset around segmenting audiences and building credibility taught me a lot about any sort of social change.
"Why Does He Do That? Inside the Minds of Angry and Controlling Men" is nominally about abuse in romantic relationships. But its insights about power and control have been useful to me way beyond that. E.g., so much behavior in large corporations is inexplicable if you look at it in business terms, and perfectly sensible if you think about if from the perspective of, "What would a person with abusive tendencies gain from this situation?"
Also, hearty +1s for books "Design of Everyday Things", "Finite and Infinite Games", and "Punished by Rewards".