Discuss the different components of preservation of library resources and the librarian’s responsibility in this regard.

The library houses the document by considering the long-term preservation of the items while still allowing the end user to access the material easily. But all library collections experience damage from use and decay from aging. So, there is a need of preservation and conservation of library materials.

Preservation is the task of minimizing or reducing the physical and chemical deterioration of documents. Conservation is the maintenance of documents in a usable condition through treatment and repairs of individual items to slow the process of decay or to restore them to a usable state. Conservation includes study, diagnosis, preventive care, examination, treatment, documentation using any methods that may prove effective in keeping that property in as close to its original condition as possible and for as long as possible. The conservation actions are carried out for a variety of reasons including aesthetic choices, stabilization, needs for structural integrity or for cultural requirements for intangible continuity.

Need of Preservation and Conservation: When an important, often used book is found in a poor physical condition that restricts its future use and denies the borrower the pleasure of its reading, then the need arises for its preservation and conservation. The need of preservation and conservation are-

a) Decay from Ageing of the Material: Library holdings may begin to deteriorate because of _________ __________ __________ _______ ____ ____ _____.
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