In this collection of more than 40 columns, New York Times beauty writer Bee Shapiro gets the world's most photographed people to share their most intimate rituals: daily skin care regimens, opinions on makeup, hair care, diet and exercise, and the way beauty has evolved for each person over the course of his or her life.

Beauty-unlike fashion-is something almost anyone can participate in and still have stellar results: the moisturizer that Emma Roberts buys at Whole Foods is just as accessible to any other 26-year-old.Skin Deep is an in-depth look at the surprising role that beauty plays in our lives, the large or small amount of work it involves on a daily basis, the money spent, the time taken, and what it means to everyone from ballet dancers to musicians, models to powerful entrepreneurs. You'll learn how Kylie Jenner gets Instagram-ready; the preferred face mask of supermodel Natalia Vodianova; what beauty staples Olympian Allyson Felix uses off the track; and exactly what makes Martha Stewart's skin-care regimen cost $2,000.

Including 10 new subjects, alongside favorites like Gwyneth Paltrow, Priyanka Chopra, and Anna Kendrick, plus sidebars and photography, Skin Deep takes an intriguing look at contemporary beauty, not only through entertaining celebrity interviews, but with in-depth guidance from names like Christophe Robin and Patrick Ta, as well as other beauty experts, and through Shapiro's own look at popular trends-for both a sense of context and a wealth of applicable beauty advice.