The Art of Work by Jeff Goins

Living Forward by Michael Hyatt and Daniel Harkavy

Visioneering by Andy Stanley

Boundaries by Henry Cloud and John Townsend

Safe People by Henry Cloud and John Townsend

Making Feedback Work by Elaine Holland

Leadership is an Art by Max Depree

Principle-centered Leadership by Stephen R. Covey

The 7 Habits of Highly Effective People by Stephen R. Covey

What's Important Now by John Kuypers

The 21 Irrefutable Laws of Leadership by John Maxwell

The 5 Dysfunctions of a Team by Patrick Lencioni

The One-minute Manager by Ken Blanchard and Spencer Johnson

What's Important Now by John Kuypers

Shift: How to Reinvent Your Business, Your Career, and Your Personal Brand by Peter Arnell