Keith Sawyer. Group Genius: The Creative Power of Collaboration. Basic Books, 2007 (revised 2017).
The strongest academic bridge between improv practice and creativity research. Sawyer was a jazz pianist AND improv performer at iO Chicago under Del Close before becoming a creativity researcher at UNC Chapel Hill — he brings insider knowledge to rigorous academic study.
Key contributions:
- "Group flow" — coined based partly on ethnographic study of improv ensembles; the conditions under which collaborative emergence occurs
- "Collaborative emergence" — the group product is not reducible to individual contributions (the academic framing of Del Close's "group mind")
- Ch. 1 ("The Collaborative Mind") uses improv as the opening case study for all group creativity
- Ch. 3 ("Group Flow") describes conditions: mutual dependence, shared goals, close listening, equal participation
- Explicitly argues innovation is not the product of lone geniuses but of collaborative webs
Also relevant: Sawyer's earlier academic works — "Group Creativity: Music, Theater, and Collaboration" (2003) and "Explaining Creativity" (2012, Ch. 16) — provide deeper empirical treatment. His PhD at University of Chicago studied improv groups at iO and Second City.
Value: Gives the ensemble and group-mind atoms empirical grounding beyond the Close/Halpern tradition's more spiritual framing. When the atom says "group mind is not mystical — it's the observable result of multiple agents following the same principles," Sawyer's research is the evidence.