Vignelli’s designs include the iconic American Airlines “AA” logo, New York Subway signage, and the much heralded (or cursed, depending on who you ask), 1972 New York Subway map. Vignelli’s work also includes the directional signage for Washington D.C.’s Metro and the old dinnerware on Alitalia flights.

Vignelli’s American Airlines logo. Vignelli’s original design left out the eagle, but AA required its inclusion.

Vignelli’s work always focused on simplicity and clarity, as seen in the “AA” logo and his subway signage. That simplicity earned loud criticism in 1972, with the release of his New York City subway map that eschewed geographical accuracy.

A version of Vignelli’s NYC subway map.

Vignelli’s legacy as a designer is vast, but he should hold a special place in the minds of those of us who love transportation, whether in the air or on the ground.