In my books I frequently refer to other inspirational authors and books. You can find these people’s work here, and can get them through the links provided:

Personal Development:

There Is Nothing Wrong with You
by Cheri Huber

It's About Time!
by Dr. Linda Sapadin

He's Scared, She's Scared: Understanding the Hidden Fears That Sabotage Your Relationships
by Steven Carter, Julia Sokol

Earn What You Deserve: How to Stop Underearning & Start Thriving
by Jerrold Mundis

For Business:

Good to Great
by Jack Collins

Put The Moose on the Table: lessons in leadership from a CEO's journey through business and life
by Todd and Randall Tobias

The Joy of Conflict Resolution: transforming victims, villains and heroes in the workplace and at home
by Gary Harper

Other Resources:

http://www.vanstart.com