销售信是促销和推销产品或服务的一种常用商务劝说信函，其目的是劝说新老顾客购买企业产品或服务。在贸易竞争激烈的背景下，企业深知产品促销在销售业务拓展中的重要性和必要性。销售信在促销产品、推荐服务、维系客户关系等方面能起到较好的作用，同时也有利于提升顾客对企业的忠信度。
销售信的一般分类
销售信通常被分为两大类:主动销售信和应征销售信。
Sales letters are usually divided into two categories : unsolicited sales letters and solicited sales letters.
1.主动销售信(Unsolicited Sales Letters)
主动销售信也被熟知为直接邮寄的广告，因为主动销售信是在没有邀请的情况下直接邮寄给客户或潜在客户的。因此，主动销售信只能通过突出产品或服务来吸引客户。
Unsolicited sales letters are also known as direct-mail advertising since they are directed to customers or potential customers without invitation. They're written to ap-peal to customers by highlighting products or service
2.应征销售信(Solicited Sales Letters)
应征销售信是针对客户对某些特定商品或服务提出咨询的回复信函。令人满意的应征销售回复信函依赖于对商品或服务明确而吸引人的描述。
Solicited sales letters are replies to inquiries by customers about some specific products or services, Satisfying replies depend on the distinctive and attractive de-scription of products or service.
