Kim Brooks, in her review of Dressing Constitutionally, over at Jotwell:

One of the most heated series of conversations I had with my colleagues in law school was about hair: color, style, length, and accoutrements. All of these choices apparently meant something. It was unclear to me what, precisely, my haircut at the time signalled—or didn’t—but it was clear to me that Hair Matters.

Dean Brooks (and her hair) pictured below: