About the Authors
JOHN H. (JACK) ZENGER
John H. (Jack) Zenger is the cofounder and CEO of Zenger Folk-man, a professional services firm providing consulting, leadership development programs, and implementation software for organizational effectiveness initiatives. Considered a world expert in the field of leadership development, Jack is also a highly respected and sought-after speaker, consultant, and executive coach.
Jack’s career has combined entrepreneurial, corporate, and academic activities. In 1977 he cofounded Zenger-Miller and served as its president and CEO until 1991. The Wall Street Journal named Zenger-Miller one of the 10 best suppliers ...
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