About the Authors

James Fadiman, PhD

James Fadiman, PhD

James Fadiman, Ph.D., is a prominent figure in the field of psychedelic research, particularly known for his work on microdosing psychedelics like LSD and psilocybin. Often called the “father of microdosing,” Fadiman has a long history in the study of psychedelics dating back to the 1960s, when he worked on studies involving LSD and creativity while at Stanford University. After psychedelics were banned in the U.S., Fadiman shifted his focus but returned to psychedelic research decades later.

His book, The Psychedelic Explorer’s Guide: Safe, Therapeutic, and Sacred Journeys, has become a key resource in understanding the practice of safe psychedelic exploration. In recent years, he has pioneered research on microdosing, examining its potential benefits for mental health, cognitive enhancement, and overall well-being.

Jordan Gruber, JD

Jordan Gruber, JD

Jordan Gruber has a JD from the University of Virginia School of Law, and both a philosophy BA and public policy MA from Binghamton University. After practicing law at Cooley Godward and focusing on IP law at NASA’s Moffett Field, and working at GNOSIS Magazine, “The Practical Wordsmith”—writer, ghostwriter, and editor—emerged. As such, Jordan has co-created cutting-edge works on everything from forensic audio and financial services to health, wellness, psychology, and spirituality. His editorial abilities and stamina, collaboration skills, and wide-ranging knowledge reliably lead to easy-to-read books woven with astute detail.

Jordan and Jim Fadiman have been close friends since 1990, when Jordan would seek advice on his Enlightenment.Com project. Jordan contributed to Jim’s 2011 book, The Psychedelic Explorer’s Guide (2011), and in 2020 their co-authored book on healthy multiplicity—Your Symphony of Selves: Discover and Understand More of Who We Are (Inner Traditions)debuted. Since then, both Jordan’s and Jim’s attention have turned increasingly solely toward Microdosing for Health, Healing, and Enhanced Performance (St. Martin’s Press, 2025

(see MicrodosingBook.com).