Dear Jaya Library science is pertaining to knowledge management as we all know. However, I feel the answer to your question lies in the book: Foskett: Subject approach to information Even Dr.S.R.Ranganathan has brought out this aspect in his book, I do not recollect the title exactly - but concerning "facets". Subject background does make a difference. You could have seen subject specialists without library science background are also managing their libraries very well when compared to library science graduate without subject knowledge. The other way is also possible. Around 15 years back I got the opportunity to visit CFTRI library Mysore. I could see library science graduates with social science background could give excellent service. In my opinion it all depends on the interest, dedication with which one works. One cannot put hard and fast rule. There are cases where a person has NET,SET,M.Lib.Sc and all qualifications that UGC, AICTE require as per rule. But they are not able to provide the service to readers. Don't you agree with me? -- Shantha Venkatesan. Senior Librarian Prof.M.M.Sharma Library U.I.C.T.Matunga (East) Mumbai400 019