S. R. Ranganathan The Five Laws of Library Science 1. Books are for use. 2. Every reader his book. 3. Every book his reader. 4. Save the time of the reader. 5. The library is a growing organism. from: The Five Laws of Library Science by S.R. Ranganathan Bombay Asia Publishing House 1963 ) Ranganathan was a librarian and library educator. His 5 laws are the clearest description of what a ...