L & T posts have the option of double wall construction, which combines a clean appearance with remarkable strength. This makes it especially attractive for the display or storage of books. WORKFLOW FILING also represents the leaders in the cantilever style library shelving arena. Cantilever means the shelves hang from central uprights, creating a clean and fully accessible look. A wide array of accessories allows books, catalogs, manuals and media of all sizes to be stored most effectively.