Paper is one of the most important materials used in libraries for recording, preserving, and communicating knowledge. Books, manuscripts, newspapers, journals, maps, and other library documents are mainly prepared using different types of paper. The quality, composition, and durability of paper vary according to the materials and methods used in its production. Understanding the varieties of papers is essential for the preservation and conservation of library materials because different papers react differently to environmental conditions, chemicals, and handling. Papers can be classified on the basis of their raw materials, manufacturing processes, and quality. The earliest papers were made from natural fibres such as cotton, linen, and other plant materials. These papers are generally strong and durable because they contain fewer harmful