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介绍信的概念
介绍信是用来介绍联系接洽事宜的一种应用文体。它具有介绍、证明的双重作用。 介绍信主要有两种形式，普通介绍信和专用介绍信。
介绍信的结构及写作方法
普通介绍信一般不带存根，正中写介绍信。内容包括：称呼;正文;结尾;署名和日期。并注上有效
1)介绍信的概念m.liuxuequn.com
介绍信是用来介绍联系接洽事宜的一种应用文体。它具有介绍、证明的双重作用。
介绍信主要有两种形式，普通介绍信和专用介绍信。
(2)介绍信的结构及写作方法
普通介绍信一般不带存根，正中写“介绍信”。内容包括：称呼;正文;结尾;署名和日期。并注上有效日期。
专用介绍信共有两联，一联是存根，另一联是介绍信的本文。两联正中有间缝，同时编有号码。
出国劳务介绍信范文(一)
To Whom It May Concern: xiao688.com
This is to confirm that Mr. Li Dashui has worked as a full-time system analyst in the NY University since Jun 1994(or This letter is to verify that Mr. Li Dashui worked as an chemist from July 1993 to Sept. 1994).
Mr. Li's main duties and responsibilities are as follows:
Design, develop and install various computer hardware, software and network systems for banks.Determine and analyze the requirements of each system project into related componets solved through the application of computer technology. Write specifications for computer programs, and test and implement programs for network systems and control systems. Supervise computer programmers and other system analysts for paticular system projects.
Mr. Li has mainly taken part in the following projects:
The first engineering design of ci...