Orison Swett Marden is well-known for his inspirational and spiritual books of self-help. An Iron Will was written by him with the assistance of Abner Bayley. It highlights the importance human will. Do you wish to be successful? Do you want to be rich? Do you want to be confident? Learn how to develop your will-power with this book and become the desired version of yourself. Now achieving success and overcoming disappointments is just one step away from you!