DK essential Manager's Manual,  DK Publishing Inc.  isbn 0-7894-3519-5

How to Disagree without being disagreeable, Wiley  isbn 0-471-15705-8

Gung Ho! Turn on the people in any organization, Blanchard/Bowles, isbn 0-688-15428-x

How to win friends and influence people, Dale Carnegie, isbn 0-671-72365-0

The Leader in you, how to win friends, influence people and succeed in a changing world,

Dale Carnegie,  isbn 0-671-51998-0