R.D.Laing (1927-1989) was one of the best-known and most controversial psychiatrists of the post-war period. After graduating from Glasgow University as a doctor of medicine he spent two years a psychiatrist in the British Army before moving in 1953 to the Glasgow Royal Mental Hospital, then the youngest consultant in the country. In 1956 he moved to the Tavistock Institute in London where he worked alongside leading psychotherapists such as John Bowlby and D.W.Winnicott, remaining there until the mid-1960s. In 1965 he co-founded the Philadelphia Practice in London, where patients, doctors and staff mixed freely without hierarchy.