Richard Potter, Director of Digital Strategy, Microsoft
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)
R. Michael Anderson: Leadership Mindset 2.0
The Five Dysfunctions of a Team: A Leadership Fable by Patrick M. Lencioni
High Performance Habits: How Extraordinary People Become That Way by Brendan Burchard
Harvard Business Review
Emotional Intelligence by Daniel Goleman
Delivering Happiness by Tony Hsieh
What the Dog Saw by Malcolm Gladwell
Myers-Briggs - MBTI Personality Type
Maslow's Hierarchy of Needs
Traction: Get A Grip on Your Business by Gino Wickman