Wayne W. Dyer was an American self-help author and motivational speaker who wrote first about psychology and later about spirituality. His first book, Your Erroneous Zones, appeared in 1976, and he went on to write many more, including Change Your Thoughts - Change Your Life, which draws on the Tao, and The Power of Intention. Born in 1940 and died in 2015, he worked as a counselor early on and was shaped by the ideas of Abraham Maslow and Albert Ellis.