The Duchess of Cambridge's charity work focuses mainly on issues surrounding young children, addiction, and art. Catherine's impact on charitable donations and project visibility has been called the "Kate effect". She has a number of patronages: The Art Room, the National Portrait Gallery, East Anglia's Children's Hospice, Action on Addiction, Place2Be, the Natural History Museum, the Anna Freud Centre, Sportsaid, and The 1851 Trust. The Duchess, as a history of art graduate, takes an interest in art and handpicked the Art Room, which "helps disadvantaged children express themselves" through art therapy, and the National Portrait Gallery. In her capacity as patron of Action on Addiction, the Duchess has occasionally made visits to its centres, spending time with recovering addicts. The Duchess is joint Patron of 100 Women in Hedge Fund's Philanthropic Initiatives, along with Prince William and Prince Harry. She was also a local volunteer leader with The Scout Association in north Wales, of which the Queen is patron, before being made co-president in September 2020, alongside the Duke of Kent. It aims to provide activities to over 400,000 young people in the UK.