Women to Watch: Nicola Mendelsohn, Institute of Practitioners in Advertising; Karmarama

Nicola Mendelsohn is chairman and partner of independent London ad agency Karmarama, and president of the Institute of Practitioners in Advertising. She also holds senior roles at two women's charities -- Women's Aid and White Ribbon -- and manages all this working only four days a week. The other three days of the week are pretty full, too. She has four children, and thinks nothing of cooking for between 20 and 50 guests every weekend at her North London home. Even then, she still finds time to keep up with the latest box-sets, movies, theater, books and -- in her idle moments -- isn't too highbrow to enjoy a good fashion magazine.