Rob Clarke has devoted his entire professional career and much of his personal life to the study of the Cannabis plant and human-cannabis relationships. He is the author of “Marijuana Botany” and “HASHISH!”, coauthor of “Cannabis: Evolution and Ethnobotany”, several book chapters and numerous peer reviewed articles, as well as participating in international conferences. Rob's work is widely known and recognized by his popular audience as well as his academic peers. Rob maintains a lengthy working relationship with HortaPharm BV in the Netherlands specializing in industrial and medicinal Cannabis breeding, and continues to serve as Projects Manager for the International Hemp Association. During the past three decades Rob has traveled extensively documenting traditional Cannabis production and use, increasingly threatened by globalization and cultural prejudice, and has assembled a comprehensive collection of Eurasian hemp textiles. Rob presently heads an international cannabis consultancy specializing in smoothing the transition into a wholly legal and normalized cannabis market.