Dmt: The Truth about Dimethyltryptamine: The Ultimate Beginner's Guide to a Revolutionary Compound and Its Full Effects, Paperback
Colin Willis
Kratom: The Truth about Mitragyna Speciosa: An Introductory Guide to Capsules, Powder, Extract, and the Full Effects, Paperback
Hallucinogens: The Truth about Hallucinogenic Plants: The Ultimate Beginner's Guide to Lsd, Peyote, Psilocybin, and PCP, Paperback/Colin Willis
Psychedelics: The Truth about Psychedelic Drugs: An Introductory Guide to Ayahuasca, LSD (Acid), Dmt, Entheogens, and the Full Effec, Paperback/Colin Willis
Entrepreneurship in the Informal Sector
Colin C. Williams
