The Complutense University Library participates in the largest international project for the preservation and dissemination of electronic books

In the HathiTrust Digital Library , the Complutense has as partners the main libraries of the United States, Harvard, Princeton, Yale, MIT. More than 8 million old books in consultation are guaranteed to be preserved for future generations. The Complutense University of Madrid is one of the three non-American institutions that, together with the most important education organizations worldwide - Harvard, Princeton, Yale, Columbia, MIT. .- participate in the great HathiTrust Digital Library project. A project whose objective is to ensure that digitized books of bibliographic heritage are not only disseminated, but preserved for future generations. Ensuring preservation, combating technological obsolescence, the fragility of electronic files or accidents and natural disasters is something to which libraries devote a large part of their budgets. To avoid these problems, the main North American libraries decided to join the world's largest, the Library of Congress of the United States, by creating a portal where the most valuable books could be accessed and preserved for future generations.