- The Psychedelic ExperienceTimothy Leary, Richard Alpert et al.
- The unfolding selfRalph Metzner
- Know Your TypeRalph Metzner
- Opening to inner lightRalph Metzner
- Sacred vine of spiritsRalph Metzner
- The psychedelic readerRalph Metzner, Timothy Leary
- Sacred mushroom of visionsRalph Metzner, Diane Darling
- AyahuascaRalph Metzner
- Green psychologyRalph Metzner
- Ecology of ConsciousnessRalph Metzner
- The well of remembranceRalph Metzner
