便函或备忘录(Informal Letters or Memos)便函和备忘录通常用于公司内部传递信息，将实情、信息、观察资料等进行传阅。便函和备忘录包括如下固定格式：
Date：(日期，如September 12, 2001)
From：(发文人，如Jim B. Hardemann)
TO: Henry Smith, Sales Manager
FROM: Jack Wong, Personnel Manager
DATE: May 4, 2000
SUBJECT: Applicants for Sales Post
Attached are the resumes and certificates of four applicants who have applied for your department position.
Please evaluate these applicants and then recommend people you want to interview to me. As soon as I have the names, I will make arrangement for the interviews.
To: Ted Feng
Date: Oct. 1st
From: Paul Andersson
Topic: Delay of arrival
Paul called for you, just after you had left work. He missed the flight due to the bad weather. He will not arrive until 5 pmtoday on flight No. JL608. You are requested to meet him at the airport and drive him to Holiday Inn. This means you neednt wait for him at lunch time tomorrow. To make up he wants to invite you for dinner.