The ease with which individual characters and words can be distinguished and identified, determined primarily by the intrinsic design of the Typeface. Key factors include letter differentiation, X-Height, Counter openness, Stroke contrast, and Terminal clarity. Legibility is a property of the typeface itself (how recognizable each Glyph is in isolation or at a glance) and is distinct from Readability, which concerns the comfort and efficiency of reading extended text and is influenced by typesetting decisions such as Leading, Measure, and Alignment.