Previously known as the Centennial Library, the Esteban Echeverría library was designed in 1884 by the then Council president, Dr. Roberto Larroque, who ordered library materials from foreign counties. It also houses a collection of 30,000 texts on law and legislation. There are texts from Visigothic Spain, from the Viceroyalty of the Río de la Plata, and the colonial Buenos Aires Cabildo, and others.