The Obsidian Columns plugin allows users to create multi-column layouts within Obsidian notes. It offers three distinct methods for structuring columns: callout syntax, codeblock syntax, and list syntax. The plugin supports advanced layout features, including nested columns, customizable column widths, and flexible row creation. Users can define the height, width, alignment, and borders of individual columns, as well as set global layout defaults for an entire column group. With live-preview support for callout and codeblock syntax, users can see their column structures in real time. The plugin also enables content wrapping for mobile devices, ensuring responsiveness. Customizable border styles, padding, and row breaks provide precise control over the visual presentation of notes. The Obsidian Columns plugin is useful for structuring complex notes, side-by-side content, or any layout requiring a multi-column approach.