For more than 25 years, The Leadership Challenge has remained one of the most widely read, and trusted sources on how to become an extraordinary leaders. Now in its 5th edition, Kouzes and Posner have sold morethan 2 million copies in over 20 languages.Based on Kouzes and Posner’s extensive research, their newest editioncasts their enduring work in context for today’s world. This is a highly recommended read, and hasan abundance of resources available.