TD Magazine Article Geeks & Geezers How Era Values and Defining Moments Shape Leaders Book PG By Patricia A. Galagan 0 Comments Bookmark Main Site Sign in Page Don't have an ATD account? Don't have an ATD account? Forgot your Password? Already an ATD customer without a web account? Institutional subscriber? Click here to sign in. Share Member-Only Content Reviews the book 'Geeks & Geezers: How Era, Values, and Defining Moments Shape Leaders,' by Warren G. Bennis and Robert J. Thomas. You've reached ATD member-only content. Sign in below or join ATD to continue. Sign In