The barbershop is where the magic happens. Boys go in as lumps of clay and, with princely robes draped around their shoulders, a dab of cool shaving cream on their foreheads, and a slow, steady cut, they become royalty. That crisp yet subtle line makes boys sharper, more visible, more aware of every great thing that could happen to them when they look good: lesser grades turn into As; girls take notice; even a mother's hug gets a little tighter. Everyone...