The five most important questions you will ever ask about your organization

by Drucker, Peter F., Collins, James C., Kotler, Philip, Kouzes, James M.
Published 2008

The definitive Drucker

by Edersheim, Elizabeth Haas
Published 2007

The Drucker lectures : essential lessons on management, society, and economy

by Drucker, Peter F.
Published 2010

A class with Drucker : the lost lessons of the world's greatest management teacher

by Cohen, William A.
Published 2008

A year with Peter Drucker : 52 weeks of coaching for leadership effectiveness

by Drucker, Peter F.
Published 2014