book · Harry Collins / Robert Evans · tradition:
expertise-research
A taxonomy of expertise, including interactional expertise: fluency in a field’s language acquired without contributory practice.
The book’s stance. Bears on bridge-node-is-versatile-specialist and Chapter 8’s tacit-knowledge argument. Pressure-tests: interactional expertise can bridge without contributory depth; supports the training-function claim that tacit knowledge needs apprenticeship. Quote-backed supports/pressureTests edges pending extraction of the source PDF.
Availability. Cited by reference; no local copy held in the repo.