促销信分为两种：一种是直接推销产品的信，另一种是答复对方咨询产品的信。如何答复买方的咨询我们前面已经讲过，现在我们着重要讲的是直接推销产品的促销信。
和其他推销方式比起来，促销信成本低廉，还可以传递更多、更详细的产品信息。下面是写促销信应遵循的一些基本原则：
1. Emphasize the benefits rather than the features of the product or service.
为了迎接新的一年,本公司又新推出一系列新年赠送礼品!富有中国特色的筷子筒、脸谱多功能削皮器;有喜庆洋洋的苹果盘、依依不舍纸巾架、苹果盘4合1;还有逗趣可爱的青蛙香皂架、海马挂钩系列、多功能刀具等产品! 适合于任何促销场所,是最佳的广告促销赠送礼品! 2. Use active voice in picturing the reader enjoying the use or performance of the product or service.
3. Focus on one of the main appeals.
4. Subordinate the price, unless it is an obvious bargain, by mentioning it after most of the benefits have been listed.
5. Use a promotion piece (eg. An enclosed brochure) to illustrate the details of the product or service.
6. Specify the action by providing the ways of obtaining the product.
