Just Say Know is an essential resource for counsellors, educators, therapists, social workers, policy-makers, and professionals interested in acquiring a practical understanding of psychoactive drug pharmacology and physiology. In addition to evaluating traditional street narcotics, the most commonly abused drug families depressants, stimulants, hallucinogens, and psychotherapeutics are presented in an accessible format that unpacks risk and therapeutic applications. Csiernik demystifies the abuse of prescription compounds, as well as drugs that are new to North American communities. Pedagogical features include quizzes, case studies, figures, and a comprehensive list of addiction resource centres, making this book a perfect addition to any addictions-related program or course. Light on jargon and heavy on evidence, this manual supplies the blueprints that every service provider needs to dispense sound, evidence-based care.