Kerning adjusts space between specific letter pairs (e.g., "AV" or "To") for optical balance. Tracking (letter-spacing) adjusts spacing uniformly across text. Fonts include kerning tables; manual kerning for headlines only. Tracking: tighten headings slightly, loosen uppercase.
Most fonts have good kerning—leave default. Adjust tracking for all-caps text (+5-10% letter-spacing for readability), large headings (tighten -1 to -2%), and accessibility (increase for dyslexic readers). Manual kerning only for logos and hero headings.
Typography
Letter spacing fundamentals