Studying psychology to boost the effectiveness of your ads isn’t evil. It simply teaches you: 1. What people want. 2. How they feel about what they want. 3. Why they act as they do. And once you know this, you can: 1. Better understand how to satisfy your customers. 2. Influence more people to buy. 3. Get your quality products into more people’s hands. 4. Help add more satisfaction to their lives.