Adam Grant provides mental models for personal interactions and collaboration, along with research and recommendations.
"And this can be our goal. Every day, with every action, to make something more civilized." - Seth Godin
Seth Godin and David McCollough are two names I think of when I ask which authors consistently create authentic, well-researched stories that help me think more clearly.
This post on civilization inspires all kinds of thoughts on teamwork, how teams align, and how larger groups of people align.