"Step by Step to Understanding Personality Types" could be the most revolutionary book you'll ever read on managing others.

In 12 modules and 211 steps, you'll discover a system of defining personality that, until a few years ago was hidden in the mists of time, and is now one of the most powerful tools for understanding what makes others tick.

You'll start with "Personality Typologies" and "The Enneagram"; then visit each of the personality types in turn, from "The Need to be Perfect" and "The Need to be Needed"; through "The Need to Succeed", "The Need to be Special" and "The Need to Perceive"; onto "The Need to be Safe" and "The Need to be Happy"; and ending up with "The Need to be Strong" and "The Need to be at Peace". The handbook concludes with "Managing Personality Types".

Here's just a fraction of what you'll learn:

• The right way to manage people, and the wrong way
• Why Ones are like ants
• Why Twos want to please others
• How a Three boss manages staff
• Why you need a Four on your team
• The classic weakness of Fives
• Why you can both love and hate a Six
• Why Sevens love to be up in the air
• How Eight organisations work
• When you need a Nine