Negotiation Skills:

Getting to Yes - Fisher, Ury & Patton
Negotiating Skills -Tim Hindle (part of the Dorling Kindersley “Essential Managers” series)
Coping with Difficult People - Robert M. Bramson
Dealing with Difficult People - Christine Osborne (part of the Dorling Kindersley “Essential Managers” series)
Kiss, Bow or Shake Hands -Terri Morrison, Wayne A. Conaway & George A. Borden
Bare Knuckle Negotiating - Simon Hazeldine

Coaching Skills:

Coaching and Mentoring - Eric Parsloe & Monika Wray
The Coach’s Coach - Alison Hardinghamn
Leadership Coaching - Graham Lee
Coaching: Evoking Excellence in Others - James Flaherty Coaching Successfully - John Eaton & Roy Johnson
(part of the Dorling Kindersley “Essential Managers” series)
The Psychology of Executive Coaching - Bruce Peltier
Coaching & Mentoring - Eric Parsloe and Monika Wray

Networking:

Make your Contacts Count - Anne Baber & Lynne Waymon

Personal Development:

How to Win Friends and Influence People - Dale Carnegie
The Seven Habits of Highly Effective People - Stephen Covey
The Road Less Travelled - M. Scott Peck