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 23 The bangle cause inconvenience to the customers. merchant desires to exhibit the varieties he has by a neat arrangement. In short it may be said that classification and arrangement save time, make location and replace- ment convenient and make it possible to transact more business. Even in a library such classification and arrangement are essential. LIBRARY CLASSIFICATION The library classification is the systematic scheme for the arrangement of books and other materials in a library. It is an important labour saving device resulting in more and more efficient and effective service to the community. Its primary object is to secure economy and increased efficiency in handling books. In the olden days the books were grouped ac- cording to size, colour, printer or publisher. Then they were arranged according to the alphabetical order of either the names of the authors, or the titles of the books. Later the books were classified according to subjects. At present the systematic subject arrangement is considered as the most con- venient one. The chief object of this arrangement is to divide universal knowledge into its various parts (subjects) and to arrange these parts in a. systematic order. This helps to bring the related The subjects together in some degree of affinity. unrelated subjects are separated automatically. short, the classification of books was an art in olden days. Now it has become a science-a discipline at the University level. In