private library

Library science is the study of the principles and practices of library care and administration. It emerged as a distinct field in the late 19th century due to a proliferation of books and the need for specialized training for librarians.12

A private library is owned by an individual and can be highly specialized, often collecting in depth on a subject beyond the scope of public institutions. Historically, private libraries were common in ancient Rome, with notable examples including those of Cicero and Lucius Licinius Lucullus. Some private collections have formed the basis for major public institutions, such as the Folger Shakespeare Library.34

A special library is privately owned by a business or organization, focusing on materials relevant to that entity and typically serving its staff.5