S.R. Ranganathan was an Indian mathematician and librarian who is known for establishing the five laws of library science. The five laws are: 1) books are for use, 2) every reader his or her book, 3) every book its reader, 4) save the time of the user, and 5) the library is a growing organism. These laws aim to make libraries accessible to all users and ensure their collections evolve to meet the needs of readers.

1. S.R. Ranganathan
And his five laws of library science.

2. About S.R. Ranganathan
• He was born on 9th August 1892.
• He lived in Shiyali in South India.
• Before he became a librarian, he was a
mathematician.
• He created the five laws of library science.
• He created an alternative classification
system that is still used in India.
• His picture was once on a stamp in India

3. First law of library
science
Books are for use
This means that Books in Libraries are
not meant to be shut away from
people.

4. Second law of library
science
Every reader his (or
her) book
This means we don’t judge what
someone wants to read. Everyone
has different tastes and differences &
we should respect that.

5. Third law of library
science
Every book its reader
This means we should have books in the
library even if there is just one person who
wants to read it. We shouldn’t just have
popular books

6. Fourth law of library
science
Save the time of the
user.
This means it should be as easy as possible
to find what you want in the library and the
library should be accessible to all.

7. Fifth law of library
science
The library is a growing
organism.
This means that a library is always changing. The
books need to be updated over time, new books
should be bought and old books replaced.