A popularly written book with a serious purpose.

‘In this volume’, writes Dr. Duncan Blewett, ‘the authors have performed a service which has long been badly needed. They have collected and presented all the important evidence to date on the use and effectiveness of LSD. It pioneered the way for a widespread scientific and philosophic adventure into the vastness of the universe of the mind.’

Three eminent doctors involved in the fields of psychology and psychiatry have provided commentaries on this superbly researched book. — From the publisher