What Is Slab Serif?
A slab serif is a typeface whose serifs are thick, block-like, and roughly the same weight as the main strokes. Also called Egyptian or mechanistic, slab serifs feel bold, sturdy, and confident, which makes them popular for headlines, posters, logos, and branding that needs impact.
Slab serifs emerged in the early 1800s for advertising, when type needed to shout from a distance. Their heavy, geometric serifs hold up at large sizes and in bold weights.
Modern slab designs range from rounded and friendly to rigid and industrial, so the style can read as either approachable or authoritative depending on the cut.