The assertiveness bible, by Manuel J. Smith. What stays with you is the list of assertive rights, the right to be your own judge, to give no excuses for your behavior, to change your mind, to say “I don’t know”, to make mistakes, and my favorite: the right to say kemedaiwá and not want to improve. Techniques: broken record, fog bank, negative assertion, negative inquiry. Related: Ramón Nogueras’ talk on saying no.