If you want people to take you seriously when you write a memoir, you've got to nail down the classic, self-reflective pose. Look into the eyes of the people buying your book? We don't think so!
We may have never actually read any of these books, but we do think each cover exemplifies a perfect nuance of the "looking away dramatically on your memoir cover" technique. If you start practicing in the mirror now (oh and also, you know, live an extraordinary life) you too could write a memoir someday.