I was required to read this for school, and they gave a quiz on every chapter. But for that, I might not have read the whole thing. As a text, it was readable and fairly accessible and had some good points. Many of my classmates were excited about the additional resources listed at the ends of the chapters -- not something I have paid much attention to, but will keep in mind in case I end up needing some. The final paragraphs of the book ended with this information, which is disheartening at best: when the U.S. undertook the War on Drugs, it was estimated that between 3% and 5% of the population had a substance use disorder (the current term for drug abuse problem); today, after billions of dollars and millions of people incarcerated and dead, between 3% and 5% of the population have a substance use disorder. That isn't even a 0 sum game, since the total population has increased in that time, so the number of people with substance use disorder is higher than it used to be.