Hundreds of people talk about their jobs, their employers, their attitude toward work. Factory workers, janitors garbagemen, writers, salesmen, actors and actresses, stewardesses (yes, this was the early 70s - they weren’t yet flight attendants), truck drivers, accountants - really, the whole gamut. A few famous people (Pauline Kael, Rip Torn), but mostly just ordinary people.
Terkel apparently had a real talent for getting people to talk. He must also have spent countless hours turning his interviews into the clear and concise monologues that appear in the book. It’s really engaging.