A style guide is a set of standards for writing and design that helps ensure consistency in communication. It outlines rules for grammar, punctuation, tone, and formatting, making it easier for writers and designers to produce clear and cohesive content. Common examples include the Chicago Manual of Style and the AP Stylebook. Organizations often create their own style guides to reflect their unique voice and branding. These guides can cover everything from logo usage to preferred terminology, helping employees maintain a unified approach in all written and visual materials. This consistency strengthens the organization's identity and enhances professionalism.