Varying the size of the aperture has a direct effect on the legibility of a letterform and, ultimately, readability. Apertures can be 'closed' (shown in orange here) or 'open' (shown in green).

Skills Required: Beginner. You will use yarn to wrap around a letterform and add embellishments with hot glue. Ready to give your Christmas tree or stockings a pop of personality? This DIY yarn ...