Public libraries play an important social role by providing free and equitable access to knowledge, information, education, culture and opportunities for personal development. Unlike libraries that serve only a particular institution or group, public libraries are established for the benefit of the entire community, irrespective of age, gender, caste, religion, economic status, educational background or occupation. They therefore function as important social institutions that support an informed, educated and culturally active society. One of the major social roles of public libraries is to promote equality of access to information. Many people cannot afford to purchase books, newspapers, journals, digital devices or subscription-based information