In the five decades since its release, the book has been translated into dozens of languages, and has found a wide readership in both East and West. It is used as a text in scores of leading universities around the world, and the material contained within it has been applied by psychologists and physicists, by school teachers, lawyers, social workers, and by ordinary members of the public.
Ted Hughes wrote of it: ‘An astonishing book. The Sufis must be the biggest society of sensible men on earth’; and Nobel laureate Doris Lessing said of it: ‘I had waited my entire life to read this book.’
‘Perhaps the best introduction to the body of Shah’s work, the most comprehensively informative. And one is immediately forced to use one’s mind in a new way.’
– The New York Times