Here are a few words of wisdom of Winogrand from an article by Mason Resnick – http://www.photogs.com/bwworld/winogrand.html

“It is hard to break from our preconceptions about how something should look photographed. Let what you see determine where the edges of the photograph go. Forget your preconceptions about how to photograph something. A photograph, is the illusion of a literal description of how the camera saw a piece of time and space.”

He never developed film right after shooting it. He deliberately waited a year or two, so he would have virtually no memory of the act of taking an individual photograph. This, he claimed made it easier for him to approach his contact sheets more critically. “If I was in a good mood when I was shooting one day, then developed the film right away,” he told us, “I might choose a picture becuase I remember how good I felt when I took it, not necessarily because it was a great shot. You make better choices if you approach your contact sheets cold, separating the editing from the picture taking as much as possible.”