“A vibrant speaker with great depth of knowledge and a dynamic style that makes him unforgettable. Mark’s energy and enthusiasm never fail to capture the attention of audiences, and his experience and intellect keep senior business leaders engaged. Not to be missed!”

A. Stewart, Project Director, BG Group

“A ‘must read’ for anyone aspiring for senior leadership positions in business. You get a gut-wrenching sensation as you re-live your own experience of the authors’ scenarios and start to appreciate what you really should and could have done in your best career interests.”  Review of Machiavellian Intelligence.

Robert Williams, Transformation Director, Denton Williams Consulting