The 5 Human Types: Complete Volumes 1-7: Ideas for Life
2016
How to Analyze People on Sight (Unabridged)
2025
The Enjoyer: 5 Human Types
2011
The Worker: No Type Superior Morally
2014
The Thriller: Why Some Have Ambition and Others Lack it
2011
The 5 Human Types, Volume 5: The Thinker, The Hungry Philosopher
2016