Cultural Writing. Introduced by Timothy Leary, this collection of essays, photographs and research seeks to establish the scientific legitimacy of psychedelic studies. Important, very informative, and an additional valuable contribuition to the psychedelic movement --Dr. Albert Hoffman, inventor of LSD-25. As Hakim Bey writes in the Foreword: The 'doors of perception' --that's the first step. The second step is opening the doors of perception. Then --going through. Next --learning that there are no doors of perception. Then --going back outside and alerting everyone else to the wonders beyond the doors.