The interview is the most used and least understood method in the social sciences. It looks like a conversation, so people assume they can do it; it produces quotations, so people assume the quotations are evidence of what they appear to be evidence of.

Neither assumption survives contact with the method. An interview is a peculiar social occasion with its own rules, and what it produces is not a report from inside someone's head. It is an account, produced jointly, for a particular listener, at a particular moment.

Understanding that is not a caveat. It is what makes the method usable.

The varieties

The craft