A few months ago, I wrote about a book being on back order. That book was Jeffrey Gitomer's Little Green Book of Getting Your Way. I am sure that you are thinking of a little kid pitching a fit or throwing a tantrum in a department store in order to convince the parent to give in and allow the kid to get his way. That is used as an example, but it is not really a focal point. It is far better to convince the other party that it is a good idea to do business with you and essentially have that person believe it is his decision.
A whole section of the book is devoted to presentations ala Power Point. What you should do and what you should not do in a presentation. And why you should practice your presentations ahead of time. Becoming known as an expert is a big part of becoming successful because if people are seeking you out as an expert then you have a much easier job in letting them choose what to buy. Another section of the book is devoted to hot air. Once the sale is made, stop talking and start writing the order or taking the application or the lising agreement. Don't 'un-sell' by being a windbag.
As with other Gitomer books, this one bears re-reading, highlighting and studying. There is a lot to learn and re-learn. I plan to use it in the development of Power Point presentations. And I will find it a lot easier when it comes to getting my way.