"How to Win Friends and Influence People". Warren Buffett has credited it as the savior for his public-speaking phobia. Maybe check it out. Any library will have ten copies of it. Actually, if you go to your local library and state how you want to improve, they will steer you in the right direction. Librarians, I've found, tend to be very patient and wonderful at customer service. If I could run a company and my hiring pool were just one hundred librarians, it would be one hell of a well-oiled firm.