In 1953, in the presence of an investigator, Aldous Huxley took four-tenths of a gramme of mescalin, sat down and waited to see what would happen. When he opened his eyes everything, from the flowers in a vase to the creases in his trousers, was transformed. In this book, he gives an account of his experience, and his vision for psychedelics.

In this classic work of psychology John Bowlby examines the processes that take place in attachment and separation and shows how experimental studies of children provide us with a recognizable behaviour pattern which is confirmed by discoveries in the biological sciences.