Jan Ketil Arnulf (born 1960) is associate professor at BI Norwegian Business School , and a registered specialist in industrial/organizational as well as clinical psychology . In recent years he has concentrated upon how leadership is exercised and created. Arnulf is a popular, engaging and intrepid lecturer. He has been teaching in China since 2006, acting as the dean of the BI-Fudan MBA program in Shanghai.

"A brief introduction to leadership should be on any bedside table. Or maybe not? It would have a much greater impact if the book in addition was the starting point for study groups in organisations around the world. By reading A brief introduction to leadership you are far better equipped to participate in any discussions about leadership. The book is research-based and free from flowery rhetoric and standard recipes." -- Beate Karlsen (AFF/NHH) in Dagens Naeringsliv (Norwegian newspaper similar to Financial Times)