This document provides guidance on writing effective bad news messages. It discusses that bad news messages inform readers of disappointing or unfavorable information. There are two categories of bad news messages: negative replies to requests and unfavorable unsolicited messages. The document recommends maintaining a positive attitude when writing bad news, and outlines two approaches - indirect or direct - for organizing a bad news message. The indirect approach buffers the bad news with pleasantries before providing an explanation and decision, while the direct approach states the bad news initially. Both should conclude on a positive note.