Flaherty, J. (2010). Coaching: Evoking Excellence in Others, 3rd Edition. Burlington: Routledge
Goldsmith, M. & Lyons, L. (2006). Coaching for Leadership: The Practice of Leadership Coaching from the World's Greatest Coaches, 2nd Edition. San Francisco: John Wiley & Sons.
Hudson, F.M. (1999). The Handbook of Coaching: A Comprehensive Resource Guide for Managers, Executives, Consultants, and Human Resource Professionals. San Francisco: Jossey-Bass Publishers.
Peltier, B. (2010). The Psychology of Executive Coaching, 2nd Edition. New York: Taylor and Francis.