What needs to be included in a corporate style guide?

Question

What kinds of things need to be included in a corporate style guide that can't already be found in S&W, AP, Chicago Style, etc?

Answer 1

There are probably a lot of items that will not be addressed in those general-use style guides. For example, commonly used phrases in your organization: how they are spelled, styled, etc.; specific guidelines on email form and etiquette; and things like correct titles and roles within your company. Observe a "typical day" at work and open your eyes to all the different issues that arise, and whether they need to be formalized somehow in your corporate guide.