Jen Sincero
Jen Sincero is a bestselling author, success coach, and motivational speaker whose irreverent, profanity-laced voice has made her one of the most popular and distinctive figures in the personal development space. Known for cutting through the earnest platitudes that often characterize the self-help genre, she has built a massive following among readers who want practical inspiration delivered with humor, candor, and zero pretension.
Sincero’s own path to success was anything but linear. She spent years struggling financially, living in a converted garage and working as a musician and writer, before committing to changing her mindset and circumstances in her forties. That late-blooming transformation — and the insights she gained from it — became the foundation of her most famous work.
You Are a Badass: How to Stop Doubting Your Greatness and Start Living an Awesome Life (2013) became a cultural phenomenon. Written in Sincero’s signature voice — equal parts tough love, self-deprecating humor, and genuine warmth — the book distills the principles of personal development into accessible, memorable chapters that address the mental blocks, self-limiting beliefs, and fear-driven patterns that keep people from creating the lives they want. The book spent years on the New York Times bestseller list and has sold millions of copies worldwide.
She followed You Are a Badass with You Are a Badass at Making Money: Master the Mindset of Wealth (2017), which applied the same framework specifically to the psychological and emotional barriers that block financial success, and You Are a Badass Every Day (2018), a daily motivational companion. Her “Badass” franchise has sold over ten million copies collectively and been translated into over forty languages, establishing Sincero as a genuinely global voice in personal empowerment.
As a coach, Sincero has worked with thousands of clients — from entrepreneurs and artists to corporate executives — helping them identify and dismantle the internal obstacles that prevent them from taking meaningful action. Her approach, which draws on universal principles from success literature and blends them with her trademark attitude, continues to resonate with readers who are tired of being told what to do but need someone to help them believe they actually can.
