Already larger than any collection in the United States except those of the Library of Congress, the National Archives and the Defense Mapping Agency, the UCLA collection continues to grow. Every day, the staff clips all the maps that appear in the Los Angeles Times and other major newspapers, copies them on acid-free paper and adds them to the collection. Hagen-Lautrup said maps of Los Angeles's "restaurant row" and proposed development of the marina, for instance, could be invaluable some day to urban planners or social historians.
Since the staff believes that a map is much more than a graphic guide for getting from Point A to Point B, the collection also includes maps of imaginary places such as C. S. Lewis' Narnia and mental or cognitive maps. Mental maps, the librarian said, are graphic representations of how people (usually people who are not professional cartographers) perceive their environment.