Interactional expertise is part of a more complex classification of expertise developed by Harry Collins and Robert Evans (both based at Cardiff University).
Harry Potter | Harry S. Truman | Phil Collins | Harry Belafonte | Harry Turtledove | Joan Collins | Judy Collins | Debbie Harry | Harry Reid | Harry Nilsson | Bootsy Collins | Prince Harry | Harry Houdini | Harry Hill | Harry | Harry Chapin | Harry Secombe | Wilkie Collins | Harry Potter and the Half-Blood Prince | Harry Bridges | Fort Collins, Colorado | Harry James | Harry Connick, Jr. | Susan Collins | Harry Redknapp | Harry Morgan | Harry Langdon | Harry Hopkins | Francis Collins | Dirty Harry |