You can't make a sale unless your customer is emotionally and logically involved. They have to THINK your product or service is a good buy and they have to WANT to buy it. A good LONG sales letter is the classic way to capture your customer's mind AND heart. I'm talking about a web site page that has at least 900 words (about 3 pages worth of copy on a word processor.) Long letters also work well for sending through the mail or including in sales packages. They can be three pages, six, even t.