Need for Filing of Catalogue Entries 

The word catalogue has been derived from a Greek phrase Katy Logos. "Kate means "by" or "according to" and "Logos" has different meanings like "word" or "order" or "reason". Thus, this definition of a catalogue implies arranging entries according to some definite plan. Therefore, filing of entries assumes significance in a catalogue. 

You learnt about various physical forms of catalogues. Whatever be the physical or inner form, the entries are to be arranged in a catalogue according to some plan, That is to say, filing of entries on the basis of certain principles, is a must. 

1. A good system of filing of entries in a catalogue will 
2. save the time of filing of the people who use it; 
3. bring together related entries at one place, 
4. expose the items about which the user may not know till the time of the search; and 
5. facilitate manipulation and handling of the catalogue with ease, once the logic  behind the arrangement is known. 

Further, an entry misfiled is en entry lost. The user may miss the entry and thereby the details of the document for which the entry is misfiled. The user may think that the particular document is not available in the library.