A style guide is a set of standards for writing and design that helps ensure consistency across documents and publications. It outlines rules for grammar, punctuation, formatting, and tone, making it easier for writers and designers to communicate effectively. Organizations often create their own style guides to reflect their unique voice and branding. Common examples of style guides include the Chicago Manual of Style and the AP Stylebook. These guides serve as references for journalists, authors, and editors, helping them maintain clarity and professionalism in their work. By following a style guide, teams can produce cohesive and polished content.