Naturally Selected: Why Some People Lead, Why Others Follow, and Why It Matters – The Science of Leadership and the Path to Greater Success

The Leadership Code: Five Rules to Lead by

The Social Conquest of Earth

Green Giants: How Smart Companies Turn Sustainability into Billion-Dollar Businesses

The Singularity Is Near: When Humans Transcend Biology

Leadership BS: Fixing Workplaces and Careers One Truth at a Time

Meeting the Ethical Challenges of Leadership: Casting Light or Shadow