This document discusses the photography styles of Richard Avedon and Irving Penn. Richard Avedon is known for portraits with darker backgrounds that make the subject stand out. His photos include portraits of Marilyn Monroe and debutantes. Irving Penn is known for abstract still life photos, such as one with a shoe, fruit, and unnaturally positioned butterflies, and fashion photos for Vogue magazine. Both photographers experiment with lighting and backgrounds to draw attention to the focal subject.