High Quality Content by WIKIPEDIA articles! The King`s Library was one of the most important collections of books and pamphlets of the Age of Enlightenment. Assembled by George III, this scholarly library of over 65,000 volumes was subsequently given to the British nation by George IV. It was housed in a specially built gallery in the British Museum from 1827 to 1997 and now forms part of the British Library. The term `King`s Library` is sometimes also used to refer to the gallery in the British Museum built for the collection.