The power of superfamilies
Letters of Freight SansPro and Freight Text, when overlaid, show similar structure.
Aura Seltzer, writing for Typekit:
One of the simplest techniques for combining typefaces is to pair typefaces that belong to the same superfamily. Superfamilies — also known as type systems — are extended type families. […] Because designers build each font with the same proportions and structure, each font works in harmony with the others and can stand out at the same time.
Shared by Tim Brown on January 08, 2014.