Scaling Up, by Verne Harnish
Better Managers = Better Business, by Pete Fullard
McKinsey Quarterly (a wide range of leadership, management and strategic thinking)
Harvard Business Review (a wide range of leadership thinking)
William Buist: Intentional Mastery
R. Michael Anderson: Leadership Mindset 2.0
Nick Howell: Great Coaching Questions
Nancy Kline: Time to Think
Julie Starr: The Coaching Manual
John Kotter: Leading Change
Daniel Kahneman: Thinking, Fast and Slow
Forgiveness by Iyanla Vanzant
The Five Dysfunctions of a Team: A Leadership Fable by Patrick M. Lencioni
The Fear-Fighter Manual: Lessons from a Professional Troublemaker by Luvvie Ajayi Jones
The Myth of Normal: Trauma, Illness & Healing in a Toxic Culture by Gabor Maté