You might want to also learn some NLP rapport and persuasion skills.
Some books on the subject are:
"The Magic of Rapport" by Jerry Richardson
"Mind Lines" by Michael Hall and Bob Bodenhamer
"Unlimited Selling Power" by Donald Moine
There are many more available.
David Barron has a home study course and a free conference call. The conference calls are every Wed. and cover various NLP and hypnosis topics, though they are most often on persuasion. Recordings of the conference calls can also be downloaded. The sight is www.power-persuasion.com or www.changwork.com .
