Lumpkin examines basic concepts of psychology with a focus on those ideas of Carl Jung, whose teachings greatly influenced the founders of the Enneagram of today. He describes personality types in order to quickly classify basic traits, strengths, and weaknesses as revealed in Enneagram.

We are about to take a journey into the world of the Enneagram. Those with prior knowledge of the Enneagram will instantly notice the fresh approach taken in the pages to come. With a new vantage point comes new information and application. We will examine basic concepts of psychology with a focus on those ideas of Carl Jung, whose teachings greatly influenced the founders of the enneagram of today. We will also learn to identify personality types in order to quickly classify basic traits, strengths, and weaknesses. We will look at the hopes, fears, and motives of the personality types as revealed in Enneagram.