Effective Communication By John Adair

Effective Leadership Development By John Adai

Effective Communication By John Adair

Effective Leadership: How to Develop Leadership Skills By John Adair

The Structure of Magic II: A Book About Communication and Change by John Grinde

Mark Horstman The Effective Manager Hardcover Wiley Business Leadership Book

Effective Communication Through Presentation by Christoper Leeds (Used Book)

Instant Manager: Effective Presenting by Brian Salter (Paperback, 2009)