A renowned London-based leadership and culture expert with over 35 years’ experience. Nik started his career as a forensic psychotherapist, working in prisons for over a decade. Since then, he has applied his expertise in the fields of assessment and behaviour change to the business world and thus has the unique experience of having worked with royalty, CEOs, politicians, murderers and children. The list of leaders he has assessed and worked with includes the CEOs of national banks, heads of national security, hedge-fund bosses, senior civil servants, and the leaders of children's care homes.Formerly a Director at the global leadership consultancy YSC, Nik’s background also includes commercial roles and senior HR positions at firms such as BP and Barclays. As a consultant, he has worked with some of world's biggest companies, across every industry and region. He has advised boards on leadership strategy and governance. He has assessed over 1,200 senior executives, primarily for CEO and C-Suite roles. He has led organisational culture and behaviour change initiatives. And he has coached leaders in organisations of all types and sizes.He has published a highly successful series of books on leadership, many of which have been translated into multiple languages. He has been interviewed by leading media outlets such as The Economist, appeared as an expert on the BBC, and has lectured at some of the world’s most prestigious business schools, including IMD in Switzerland and University of Cambridge’s Judge Business School.His most recent book was published in 2024 titled Re-writing Your Leadership Code: How Your Childhood Made You The Leader You Are, And What You Can Do About It - a ground-breaking study of how our early experiences shape our workplace behaviours, which has been featured in Forbes, Fast Company, Harper’s Bazaar, HR Magazine, and more. His latest research focuses on how power affects leaders, and how leaders can in turn affect the positions of power they hold.