There's something about R.D. Laing that polarises those who're interested in the treatment of mental illness in Western society.
With statements such as, "a child born today in the United Kingdom stands a ten times greater chance of being admitted to a mental hospital than to a university ... This can be taken as an indication that we are driving our children mad more effectively than we are genuinely educating them. Perhaps it is our way of educating them that is driving them mad", you can see why.
This is a fascinating book written by someone who knew his subject as well as anyone. For those interested in trying to get an alternative insight into psychiatric illnesses including psychosis, Mullan's book will show where Laing was coming from.