II. Managing Glyphs 1. Glyph Metrics Glyph metrics are, as the name suggests, certain distances associated with each glyph that describe how to position this glyph while creating a text layout. There are usually two sets of metrics for a single glyph: Those used to represent glyphs in horizontal text layouts (Latin, Cyrillic, Arabic, Hebrew, etc.), and those used to represent glyphs in vertical te