INTRODUCTION TO THE BOOKLadies and gentlemen, it is my pleasure to present you the book "How to Understand Psychoactive Substances". This book is a wonderful guide for anyone interested in this topic, for anyone who has been injured or has a loved one who has been affected by drug use. In the book, I have tried to present as much scientific information on the topic as possible and at the same time to present it in an accessible way for the ordinary...