Everyone has an internal alarm clock that goes off when we're about to make a bad decision. Some spend their entire 20's hitting the snooze button. In How to Ruin Your Life By 30, Steve Farrar delivers a jolting wake-up call to help navigate these treacherous waters. Based on talks to university students, Farrar, in his forthright, no-nonsense style, helps young adults fix their mistakes before they make them---and also shows how to recover from poor choices before it's too late.