List of the largest libraries in the United States
The largest public library in the United States—and the largest library in the world—is the Library of Congress in Washington, D.C., which is the "de facto" national library of the United States. It holds more than 167 million items, including "more than 39 million books and other printed materials, 3.6 million recordings, 14.8 million photographs, 5.5 million maps, 8.1 million pieces of sheet music and 72 million manuscripts." Other than the Library of Congress, the largest public library in the United States is the New York Public Library, while the largest research library in the United States is the Harvard Library.
University of Puerto Rico at Humacao
The UPR Humacao library (or Águedo Mojica Marrero Library) is one the largest and most comprehensive library in the UPR System. In addition to creating active collections, the library keeps 99,774 volumes in its book collection, 66,230 journal titles, and it is subscribed to 2 newspapers. The Library is located in a three story building that has 88,000 square feet. It has six (6) reading rooms, more than 56 computers, two (2) microfiche readers, eleven (11) individual study rooms, and 148 cubicles. The library can accommodate 589 users. The integration of the IT infrastructure with the bibliographic infrastructure facilitates the creation of skill development information programs that supplements those of the classrooms and the training of users in the handling of electronic resources applied to the academic work. The library personnel and professional librarians have managed to turn the Institution into the home of very important biblio-technological projects, such as CONUCO (Puerto Rican journals database) and EMEUPR (authorities’ Spanish database of the UPR).