From New York Times #1 Best Selling Author of 'You are a Badass', Jen Sincero brings everyone Badass Habits. Cultivate the confidence, boundaries, and know-how to upgrade your life. Jen Sincero gets to the core of transformation: habits–breaking, making, understanding, and sticking with them like you’ve never stuck before. A eureka-sparking, easy-to-digest look at how our habits make us who we are, from the measly moments that happen in private to the resolutions we loudly broadcast (and, erm, often don’t keep) on social media.