In tribute to the most expressive part of your shoes, we're breaking down the 12 most distinctive heel trends this fall. The shapes range from sophisticated to surreal, heights from barely-there to towering; some curve sensually, while others are sharp, spiky, and take-no-prisoners. There's really no one "must-have" heel this fall — the only bad one is a boring one, and your guide to avoiding that misstep is right here.