Photographers learn to interpret photographs in that technical way because they want to understand and use that ‘language’ themselves (just as musicians learn a more technical musical language than the layman needs). Social scientists who want to work with visual materials will have to learn to approach them in this more studious and time-consuming way

Laymen learn to read photographs the way they do headlines, skipping over them quickly to get the gist of what is being said. Photographers, on the other hand, study them with the care and attention to detail one might give to a difficult scientific paper or a complicated poem.

For any picture, ask yourself what question or questions it might be answering. Since the picture could answer many, questions, we can decide what question we are interested in. The picture will, of course, suggest that some questions are likely to find answers in it. For instance, Owens's pictures of pantries and refrigerators clearly suggest that they will answer questions about what kinds of food the inhabitants of the houses store and presumably eat, while other pictures in Suburbia suggest that they will answer other questions about the housekeeping arrangements of these people.