He contents himself with printing his own interviews with his 25 world changers (or sometimes clipping together bits of other people's interviews) rather than writing interpretative essays.
And this brings us to another way of doing sociology: Interpretative sociology is the study of society that focuses on the meanings that people attach to their social world.
While positivist sociology is more interested in whether a person acts a certain way – something you can see as an outside observer – interpretative sociology asks: Why this behavior?