Marked by her signature charm, barbed wit, and undeniable power, Rousey’s account of the toughest fights of her life—in and outside the Octagon—reveals the painful loss of her father when she was eight years old, the intensity of her judo training, her battles with love, her meteoric rise to fame, the secret behind her undefeated UFC record, and what it takes to become the toughest woman on Earth. Rousey shares hard-won lessons on how to be the best at what you do, including how to find fulfillment in the sacrifices, how to turn limitations into opportunities, and how to be the best on your worst day. Packed with raw emotion, drama, and wisdom this is an unforgettable book by one of the most remarkable women in the world. "I know that I can overcome any difficulty. I know that I can persevere when things are at their worst. I’m not afraid to lose my money or my career, because I’ve lived in my car and managed to keep going. Once you’ve made it through the worst, you’re no longer afraid of the unknown. Battles are there to be won.”

Sé que puedo superar cualquier dificultad. Sé que me puedo reponer cuando las cosas están en su peor momento. No tengo miedo de perder todo mi dinero ni de perder mi carrera, porque sé que he vivido hasta en mi coche y he podido salir adelante. Una vez que has conquistado las peores cosas, no tienes por qué temerle a lo desconocido.  El combate está allí para que tú lo ganes.