Mário Feliciano was born in 1969 in Caldas da Rainha, Portugal and studied graphic design at IADE Lisbon. He has worked as graphic designer and typographer since the early 1990s. After working one year as graphic designer for Surf Portugal magazine, he opened his own graphic design studio — Secretonix — in Lisbon in 1994.

Feliciano’s typefaces range from contemporary display and text fonts to classic interpretations of early Spanish types. His typefaces are used in many Portuguese and international publications and have garnered him two TDC awards. He designed exclusive fonts for Banco Espírito Santo and for newspapers Expresso, El País and Svenska Dagbladet.

Mário is the Portuguese country delegate for ATypI, for which he has organized the 50th ATypI conference in Lisbon in 2006. Since 2001 he runs Feliciano Type Foundry. He has given lectures at various universities in Portugal and abroad.

Mário Feliciano designed Geronimo for the TEFF library.