Crucial Conversations: Tools for Talking When Stakes are High (Paperback)
by Kerry Patterson , Joseph Grenny , Ron McMillan , Al Switzler , Stephen R. Covey(foreword)

This is a great book on communicating and conflict resolution, providing down-to-earth advice on how to handle any type of conversation.

Influencer: The Power to Change Anything (Hardcover)
by Kerry Patterson, Joseph Grenny, David Maxfield, Ron McMillan, Switzler

Claiming everyone can be an influencer, the author shows to us in an easy-to-understand way "the full array of strategies that successful influencers use every day to change lifelong habits and bring about improvements."