CEO Learning Skill

Can any one be one successful CEO?  If it is not, what are the unique personal characteristics between one general CEO and one successful CEO ?  Instead of personal characteristics, which kinds of skills to any successful CEOs, they will need? Why do some CEOs encounter fail to manage themselves companies? Why do some CEOs feel difficulties to manage themselves companies? This book can indicate some evidences to explain what factors can influence the person can be successful CEO to let readers to understand. Readers can learn whether what personal factors can help general CEO to become excellent CEO in any organizations.