Lisa Sheridan, the portrait photographer who worked under the professional name of 'Studio Lisa', was given Queen Elizabeth’s permission to publish a volume of photographs of the two Princesses in 1940. The photographs were taken over several visits to Royal Lodge that spring, and show the Princesses engaged in different activities such as their lessons, music, gardening, knitting, riding and playing with their dogs. There are also several photographs of the Princesses with their parents at weekends, during their brief respites from wartime visits and inspections. The aim was to show the natural and happy upbringing of the Princesses.