A style guide is a reference work that provides writing rules, such as grammar and syntax, in specific disciplines. These include how to format citations and references, which tend to be specific to fields of study. Here we explain some style guides used in different disciplines to help you choose the right one for you. A content style guide or content marketing style guide is a brand's bible, the authoritative document that breaks down the different elements and components that make up the company identity or brand personality. It lists all the writing guidelines, style rules, grammar rules, formatting rules, and content of the brand's voice and tone guidelines. 5. UI component library. Most of the time we ignore adding UI components in the style guide. As a result, we invest more time communicating how these components interact with developers. And that's not a good sign for anyone. I tried to have as many components as possible in this section. A style guide is what writers use to create content that looks like your business. While your brand identity guide is a great way to know what you say and what you stand for, the style guide governs exactly how you say it. The writers who create your company's content will use the details in this document to find the right voice for your,