The Six Pillars of Self-Esteem: The Definitive Work on Self-Esteem by the Leading Pioneer in the Field Nathaniel Branden outlines the importance of self-esteem in our quest for psychological health, personal achievement, and positive relationships.
Leadership Gold: Lessons I've Learned from a Lifetime of Leading In this book, Stephen Covey offers a holistic, principle-centered approach to personal and professional problem solving.
Principle-Centered Leadership This book is designed to offer mentorship in 6 months. Brilliant nuggets of wisdom here.
The Magic of Thinking Big Stephen Covey takes an inside-out approach to developing yourself and your organization. This is a hands on, very practical resource.