Great question. These are 3 great books for ESFPs who want to better themselves (that I personally have read and enjoyed).

1. Taming Your Outer Child: Overcoming Self-Sabotage- the Aftermath of Abandonment by Susan Anderson
2. The 48 Laws of Power by Robert Greene
3. The Six Pillars of Self-Esteem by Nathaniel Branden

I hope you enjoy them :)

Here's one