Leadership and leadership development constitute an enormous, burgeoning ﬁeld of inquiry and practice. There are thousands of books on leadership, along with hundreds, if not thousands, of various types of leadership development programs throughout the United States. To give some sense of scope, a subject search for “leadership” in the books category of Amazon.com (on May 3, 2007) yielded no less than 27,099 results. On that given day, Lee Iacocca’s Where Have All the Leaders Gone? (2007) was the bestseller in the group. Remarkably, only 148 of the 27,099 results (one-half of one percent) were in the “public affairs and administration” category. On the other hand, 14,757 were classiﬁed under the “business and investing” category.