ILLEGAL USE OF NARCOTIC DRUGS, PSYCHOTROPIC SUBSTANCES, AND THEIR ANALOGUES HARMS HEALTH, THEIR ILLEGAL TRAFFICKING IS PROHIBITED AND ENTAILS LIABILITY ESTABLISHED BY LAW. 5 reasons to buy "DON'T BE DUMB": 1. The book is written by the famous Jen Sincero, who personally went from a dull failure to the #1 New York Times bestselling author. 2. "DON'T BE DUMB" is a continuation of the cult bestsellers "You Are a Badass" and "You Are a Badass at Making Money." 3. For this book, Jen Sincero has selected only the most effective techniques for transforming life from many. 4. All techniques are personally tested by the author and her students. 5. The signature author’s humor, endearing audacity, and sincere self-irony create the most powerful and anti-pompous self-development training book.