David Goggins in Never Finished challenges you to fight your demons and be more - way more - in the life journey that is never finished. If you let his voice into your life, he may just motivate you to be more and do more than you ever imagined. If you think if you read Can’t Hurt Me, and you do not need to read Never Finished, no Never Finished is a must read. You can read Never Finished on its own, but reading Can’t Hurt Me gives you the back story of his life that he does not repeat in detail in the second book. Both books are great non-fiction reads.