Never Finished: Unshackle Your Mind and Win the War Within is a self-help book written by David Goggins, a former Navy SEAL, endurance athlete, and motivational speaker. In the book, Goggins shares his own experiences and insights on how to overcome challenges, push through mental and physical barriers, and achieve success in life. He encourages readers to embrace their fears and doubts and to use them as motivation to become their best selves. Goggins also offers practical advice on how to set and achieve goals, cultivate a growth mindset, and develop discipline and resilience. The book is designed to help readers overcome their own limiting beliefs and achieve their full potential in all areas of their lives.