This is the bible
http://www.amazon.com/Cant-Teach-Rid...ywords=sandler
You can find it used. Sandler is the best because he doesnt use the same old models everyone else uses. That most people see straight thru.
Also another good one is
http://www.amazon.com/Secrets-Questi...+based+selling
Most salesman talk too fucking much and dont ask enough questions. Ive done lots and lots of cold calling sales in my lifetime.
You have to earn the right to close.