Abstract

Author(s): Mitali Goswami

Modern library is a workshop for the readers to accumulate knowledge and wisdom. Society has evolved a variety of libraries to meet varied needs of different segments of our contemporary society. The past is known by records, archives, books and other library materials which constitute the documentary source. Libraries are the collections of various documents from the earliest clay tablets to the micro documents magnetic and optical media.Library documents loss their permanency in the affect of various physical, chemical and biological factors and are prone to decay very fast if proper care and handling is not taken regularly. This paper deals only the deterioration of environmental factors and the preservation of library documents.