Being a CEO should be one of the best jobs in the world, argue the authors of a new book.
"It offers the chance to make a real difference," Steve Tappin and Andrew Cave write in The New Secrets of CEOs: 200 Global Chief Executives on Leading.
"However, real life for most CEOs is tough and many are not enjoying it."
The authors interviewed 200 CEOs for the book, which includes profiles of such leaders as Tesco's Terry Leahy , Avon's Andrea Jung, Xstrata's Mick Davis, Kraft's Irene Rosenfeld, Haier's Zhang Ruimin and Cisco's John Chambers.
CEOs are divided into five "distinct categories" characterised by similar leadership styles.
In the following video interview, Tappin, who heads up the CEO counselling firm Xinfu, discusses some major issues confronting top leaders at global firms since the financial crisis of 2007-2009, and shares his views with Reuters on how BP's Tony Hayward should manage the the Gulf of Mexico oil spill crisis.