David Maxfield

Change Anything: The new science of personal success

By Kerry Patterson, Joseph Grenny, David Maxfield, Ron Mcmillan, Al Switzler

Crucial Accountability: Tools for Resolving Violated Expectations, Broken Commitments, and Bad Behavior, Second Edition ( Paperback)

By Kerry Patterson, Joseph Grenny, Ron Mcmillan, Al Switzler, David Maxfield