TD Magazine Article OnDemand Learning Book Review By Saul Carliner 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 'On-Demand Learning: Training in the New Millennium,' by Darin E. Hartley and with an introduction by John Cone. You've reached ATD member-only content. Sign in below or join ATD to continue. Sign In