The Wallace D. Wattles Trilogy includes The Science of Getting Rich, The Science of Being Well, and The Science of Being Great. These books prescribe an exact method for readers to accomplish three basic goals that will make any person happy, applying principles of metaphysics and New Thought to overcome human error. Each book focuses on a subject--wealth, health, and power--and applies an exact science that will allow anyone to achieve their goal by following some basic steps in a specific order, in a "Certain Way."