Here's a concise biography for **Wallace D. Wattles**:
**Wallace D. Wattles: Pioneer of the New Thought Movement**
Wallace D. Wattles (1860–1911) was an American author and key figure in the New Thought movement, known for his teachings on the power of positive thinking and the mental science of wealth creation. His most famous work, *The Science of Getting Rich* (1910), has become a foundationa...