Variaciones Borges is a journal of philosophy, semiotics and literature, published twice a year in Spanish, English and French by The University of Pittsburgh. Reaching beyond pure exegeses of Borges's writings, the journal aims to explore the special style of thinking, writing and reading in which Borges excelled. Fantastic ontologies, synchronic genealogies, utopian grammars, fictional geographies, multiple universal histories, logical bestiaries, ornithological syllogisms, narrative ethics, imaginary mathematics, theological thrillers, nostalgic geometries and invented remembrances converge to justify the epithet "Borgesian" for a special area of academic research, in which philosophy appears as perplexity, thought as conjecture, and poetry as the deepest form of rationality.

The Borges Center, the most important site for work on the Argentine writer Jorge Luis Borges (1899-1986), moved from the University of Aarhus (Denmark) to the University of Iowa in 2005, and has now moved to the University of Pittsburgh, where its director, Daniel Balderston, has been Andrew W. Mellon Professor of Modern Languages since 2008.