National Librarian’s Day is celebrated on August 12th of every month in remembrance of Sri S. R. Ranganathan (12th August 1892 – 27th September 1972), Father of Library Science in India.

The Government of India awarded Padmashri to Dr. S.R. Ranganathan for valuable contributions to Library Science.

Five Laws of Library Science:

• Books are for use
• Every reader his/her book
• Every book, its reader
• Save the time of the reader
• A library is a growing organism

Notable works

• Prolegomena to Library Classification
• The Five Laws of Library Science
• Colon Classification
• Ramanujan: the Man and the Mathematician
• Classified Catalogue Code: With Additional Rules for Dictionary Catalogue Code
• Library Administration
• Indian Library Manifesto
• Library Manual for Library Authorities, Librarians, and Library Workers
• Classification and Communication
• Headings and Canons; Comparative Study of Five Catalogue Codes