 Her clients included Joan Collins, Britt Ekland, Barbra Streisand, Siân Phillips, Edna O'Brien and Yasmin Le Bon.She died aged 90 at the Brendoncare Foundation, Froxfield, Wiltshire.She was survived by her daughter, who continued to teach her mother's method from a studio at Hungerford, in Berkshire, and wrote a biography of Berk entitled "My Improper Mother and Me" (Pomona, 2010, ).