PURPOSE Styles make documents consistent, easier to update, and easier to navigate. WHAT STYLES CONTROL Styles can control headings, body text, lists, captions, tables, spacing, and numbering. HOW TO USE THEM Apply built-in or custom styles instead of manually changing font size, bolding, and spacing one section at a time. BENEFITS Styles allow automatic tables of contents, cleaner accessibility structure, and faster global formatting changes. BEST PRACTICE Use heading levels in order. Do not use large bold text as a fake heading.