Wallace Delois Wattles (1860–1911) was an American author. A New Thought writer, he remains personally somewhat obscure, but his writing has been widely quoted and remains in print in the New Thought and self-help movements.
Wattles' best known work is a 1910 book called The Science of Getting Rich in which he explained how to become wealthy. wiki
- Karen Kelly, The Secret of the Secret: Unlocking the Mysteries of the Runaway Bestseller (Thomas Dunne Books, 2007).