Stoicism
The Obstacle Is The Way by Ryan Holiday offers great lessons on how to overcome challenges in every aspect of your life. Ryan, in the tradition of other stoics before him, argues that rather than being stumbling blocks, obstacles are opportunities. They ask you to persevere, to think creatively, persist, and even change your perspectives. A great motivational book for anyone looking to do great things in life. I highly recommend it.
In Ego is the Enemy, Ryan Holiday argues that often our problems are caused not by external factors but from our own ego. The book is divided into 3 parts: aspire, success, and failure. A good book on stoicism but lacks practical ways to fight the ego.