This is my current required text for my final of the 4 focal areas of social work that I must complete, Substance Abuse. This book is extremely in-depth going into the very insides of the neurotransmitters in your brain and how they react when a substance encounters them, mainly targeting your dopamine receptors. This book covers every illegal and legal substance/drug/medication from A-Z (Alcohol to Zolpidem).
Upon covering what the various illicit substances to do the brain and your organs and body as a whole, the book ends with topics such as self-help groups and the debate around legalization.
The book itself is not horribly long, but VERY intensive. You must be completely focused while reading with no distractions. It's almost as intense as microbio if not more.