Tufte-LaTeX
A Tufte-inspired LaTeX class for producing handouts, papers, and books
...The classes feature wide side margins that host sidenotes, citations, and small figures, letting the main text flow without heavy footnote clutter. Built-in environments make it easy to place margin figures and tables, call out important points, and keep references close to the text they annotate. The typography favors generous whitespace, careful figure placement, and subtle rules so data and ideas take center stage. You can choose between handout and book variants, each with appropriate frontmatter, sectioning, and page geometry defaults. Authors who present technical material with many references, small graphics, or asides will find the layout supports legibility and skimmability. ...