Developing a Departmental Style Guide
Jean Hollis Weber wrote this article in 2007 but it's still relevant today given the recent focus on content strategy.
"This article provides information that will help you in planning and developing a style guide. You’ll find information about the purposes of a style guide and guidelines for what should (and should not) be included, whether to develop one or more style guides, and how detailed the style guide should be. At the end of the article, you’ll find a sample style guide outline (in PDF format) that illustrates many of the details discussed in this article."
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