Instruction manuals are extremely important. Learning how to write one as well. Knowing to how do a manual will guide your employees, or anyone trying to finish a task do its job. If a manual is not written correctly, then all will fail. It is important that the reader understands the material, that will lead them to remembering it, therefore later on achieving it without the manual.

The structure of letters, memos, and e-mails are very important, especially when working in a professional setting. The most formal of these are letters, followed by memos and at the very least, e-mails. Although these are listed by greater to least formality, they should all be written in a professional manner. Some of these use a passive voice, while the others use active voice.