ผู้เขียน: Joe Calloway

Joe Calloway is an expert on high-performance organizations and individuals, the owner of an award-winning restaurant, and a member of the International Speakers Hall of Fame. His clients read like a Who”s Who of business–from newspapers in Sweden, hotels in Great Britain, and computer companies in South Africa to world brands like BMW and American Express. He is also the author of Becoming a Category of One and Indispensable, both from Wiley.