Charla Krupp, a popular author and commentator on fashion and beauty whose bestsellers included “How Not to Look Old” and “How to Never Look Fat Again,” died Monday of breast cancer in Manhattan. She was 58.

Krupp was married to Time theater critic Richard Zoglin.

Krupp made numerous television appearances over the years. According to her publisher, the Hachette Book Group, she was on NBC’s “Today” show more than 100 times and was featured on “The Oprah Winfrey Show” as well as on ABC’s “Good Morning America” and “The View.”

As entertainment editor for Glamour magazine, she interviewed Meryl Streep, Madonna and other celebrities. She also wrote for Time magazine, USA Today, Town & Country and many other publications and had a second run at Glamour as beauty editor.

Krupp was born and raised in Wilmette, Ill., and majored in journalism at the U. of Illinois.

Hachette announced that the Krupp and Zoglin families had established the Charla Krupp Memorial Fund for Women in Media at the U. of Illinois College of Media.