For half a century, Betty Halbreich has been curating wardrobes and bearing witness to the vicissitudes of life as Bergdorf Goodman's original personal shopper. Of course, visitors to the store are awed by a 96-year-old woman who still holds down a nine-to-five, let alone one in the youth-obsessed industry of fashion.

But age is only half the story: Betty has built this career by giving encouraging yet deeply honest advice. Much of it has been about what to wear, but her insight is by no means relegated only to matters of the closet. She is known for her good taste on many levels, from her immaculate Park Avenue apartment of 70-plus years to the fashion stars she's helped discover and the looks she's styled for iconic series like Sex and the City and Gossip Girl.

In short, Betty is in the unique position to dispense useful prescriptions on how to look good and live well at any age. In No One Has Seen It All, she collects her signature firm and frank guidance on relationships, careers, style, etiquette, and keeping house, as well as eloquent reflections on aging, solitude, and modern life. The result is a definitive dispatch from a powerful woman who still holds her head up high and wants you to do the same.