The Psychedelic Science 2023 spanned one week with events on-site at the Colorado Convention Center and throughout Denver, CO from June 19-23. Classes and Workshops offered an opportunity to dive into the world of psychedelic medicine on Monday and Tuesday. Followed by the conference Tracks offer a curated guide of sessions focused on 11 exciting stages.  Dr. Matthew W. Johnson, Ph.D., is a Professor of Psychiatry and Behavioral Sciences at Johns Hopkins. He is one of the world’s most published scientists on the human effects of psychedelics and has conducted seminal research in the behavioral economics of drug use, addiction, and risk behavior. Dr. Johnson earned his Ph.D. in experimental psychology at the University of Vermont in 2004. Working with psychedelics since 2004, Dr. Johnson published psychedelic safety guidelines in 2008, helping to resurrect psychedelic research. As Principle Investigator he developed and published the first research on psychedelic treatment of tobacco addiction in 2014. Dr. Johnson and colleagues published the largest study of psilocybin in treating cancer distress in 2016. His 2018 psilocybin abuse liability review recommended placement in Schedule IV upon potential medical approval.