This document discusses four black and white portrait photographers - Yousuf Karsh, David Bailey, Sebastião Salgado, and Elliott Erwit. It provides details about each photographer's career and style. For Yousuf Karsh and David Bailey, it analyzes three portraits by each photographer, describing the subject, composition, and emotion conveyed. For Sebastião Salgado and Elliott Erwit, it notes they focus on black and white photography but does not examine specific portraits.