"Twenty years from now," Buford writes, "the rules for this second adulthood as a productive season of life may be better known. But for now, we're out across the frontier breaking new ground." Buford gives you a chance to sit at the feet of these pioneers and learn the art of finishing well so you can shift into a far more fulfilling life now, no matter your age, and pursue a lasting significance that will be a legacy for future generations.