The tutorial explains how blocks in DraftSight allow users to reuse geometry efficiently, attach custom data and streamline layout design. It demonstrates inserting blocks from the Insert tab, using Design Resources for visual previews and drag‑and‑drop placement, and importing blocks or layers from other drawings. It also shows how to create blocks from selected geometry with defined base points. Custom blocks offer advanced behaviour such as stretching, flipping and adjustable angles, enabling versatile “multi‑function” components for rapid design changes