Stefan van Raay studied Art History and Archaeology at the University of Amsterdam. In 1986 he was co-founder of the art historical consultancy D’Arts. He has been the Head of Exhibitions at the Van Gogh Museum in Amsterdam and in October 1997, he became the Director of Pallant House Gallery in Chichester, West Sussex.

Art Historian Roger Cardinal coined the term 'Outsider Art' in 1972 and has written extensively on this subject ever since.

Bobby Baker is a woman, and an artist. She lives in London, England. In her career of 35 odd years she has, amongst other things, danced with meringue ladies; made a life size edible and tasty cake version of her family to be eaten by visitors; opened her kitchen to the public and subsequently many kitchens around the world; and so on. In 2009 a major exhibition at Wellcome Collection shared her Diary Drawings with a wider public for the first time. These began in 1997 when she became a patient at a day centre. Originally private, they gradually became a way for her to communicate complex thoughts and emotions that are difficult to articulate to her family, friends and professionals.