Libro internacional is a collection of works by various international artists, including Guillermo Deisler and Graciela Gutierrez Marx, sent to Edgardo Antonio Vigo via the postal system. Vigo began the three-volume mail art project in 1976, a year of political and personal significance in which the Argentine military coup d’etat occured and the artist’s son, Abel Luis, was disappered under the new regime. Mail art emerged in latin America in the 1970s as a transnational network that sough to overcome obstacles to the exchange of artistic ideas imposed by military dicatorships. Vigo, a pioneer of the movement, writes:
“DISTANCE COMMUNICATION (MAIL ART) should not only transgress the regulations of the post office. It should also create COUNTER-INFORMATION, transforming its practitioner into an ACTIVE COMBATIVE PARTICIPANT” who denounces the aberrations of national and international systems that enslave men.“.