FF DIN is a realist sans-serif typeface designed in 1995 by Albert-Jan Pool, based on DIN-Mittelschrift and DIN-Engschrift, as defined in the German standard DIN 1451. DIN is an acronym for Deutsches Institut für Normung (German Institute of Standardisation). At a 1994 meeting of the ATypI (Association Typographique Internationale) in San Francisco, Pool encountered Erik Spiekermann, who encouraged him to design a revival of DIN 1451 for release by FontFont, the type foundry Spiekermann had just established. Today, FF DIN is one of the foundry’s best-selling typefaces.