I have been selling in one capacity or another for almost 20 years.  I have developed a unique style through reading, training and one on one coaching.  I have adopted ideas and practices from the following methodologies:

Franklin Covey: Helping Buyers Succeed

SPIN Selling

The Challenger Sale

The Maverick Sales Method

Baseline Selling

Sandler Sales

I write to create a journal of situations for me to reflect on, it also might help out the occasional sales rep that is surfing for some insight.  The best advice I could give to someone new to the profession is treat it as such.  Be a professional and be a student.