Dr. S. R. Ranganathan, known as the Father of Library Science in India, proposed the Five Laws of Library Science in 1931 in his famous book The Five Laws of Library Science.
These five laws provide a fundamental framework for library services and remain highly relevant in modern Library and Information Science. They are also important topics for UGC NET, SET, KVS, NVS and other LIS examinations.
The Five Laws of Library Science
1. Books are for Use
The first law states that “Books are for Use.”
Libraries are established to make books and information available to users. Books should not simply remain locked on shelves; they should be used by readers.
In practice:
- Open-access shelves
- Convenient library timings
- Easy access to library materials
- Helpful library staff
- Convenient library location
2. Every Reader His/Her Book
The second law states that “Every Reader His/Her Book.”
Every reader has different information needs and interests. A library should provide suitable books and information resources for different categories of users.
In practice:
- Diverse library collections
- Books for children and adults
- Large-print books
- Braille resources
- Resources for users with different abilities
- Subject-specific information resources
3. Every Book Its Reader
The third law states that “Every Book Its Reader.”
Every book has a potential reader. The library should help connect books and other information resources with the people who need them.
In practice:
- Book displays
- Book exhibitions
- Reading lists
- New-arrival displays
- Proper classification and cataloguing
- Book recommendations
4. Save the Time of the Reader
The fourth law states that “Save the Time of the Reader.”
A library should help users find the required information quickly and easily. Library systems and services should be organized around the convenience of the reader.
In practice:
- Accurate cataloguing
- Proper classification
- Clear shelf guides
- OPAC (Online Public Access Catalogue)
- Reference services
- Digital search facilities
5. The Library is a Growing Organism
The fifth law states that “The Library is a Growing Organism.”
A library is like a living organism. It continuously grows and changes according to the needs of users, developments in knowledge, and changes in technology.
Library growth includes:
- Growth of collections
- Growth in the number of users
- Development of new services
- Addition of e-resources
- Adoption of new technologies
- Professional development of library staff
Libraries may also need to weed outdated or damaged materials to maintain a useful and relevant collection.
Five Laws of Library Science – Quick Revision
| Law | Statement | Main Idea |
|---|---|---|
| 1st Law | Books are for Use | Maximum use of library resources |
| 2nd Law | Every Reader His/Her Book | Resources for every reader |
| 3rd Law | Every Book Its Reader | Connect every book with its reader |
| 4th Law | Save the Time of the Reader | Quick and easy access to information |
| 5th Law | The Library is a Growing Organism | Continuous growth and adaptation |
Easy Memory Trick
You can remember the Five Laws as:
Use → Reader → Book → Time → Growth
- Books are for Use
- Every Reader His/Her Book
- Every Book Its Reader
- Save the Time of the Reader
- The Library is a Growing Organism
Five Laws in the Digital Age
Ranganathan's Five Laws remain relevant even in the age of digital libraries and online information services.
First Law – Books are for Use
Today, the idea of use also applies to e-books, online journals, databases, institutional repositories and open-access resources.
Second Law – Every Reader His/Her Book
Digital libraries can provide accessible resources, multilingual content, assistive technologies and personalized information services for different users.
Third Law – Every Book Its Reader
Discovery services, online catalogues, digital repositories, book recommendations and social media can help users discover relevant resources.
Fourth Law – Save the Time of the Reader
Search engines, OPACs, federated search systems, full-text databases and mobile applications help users find information quickly.
Fifth Law – The Library is a Growing Organism
Modern libraries continuously develop through digital libraries, cloud-based services, electronic resources, automation, AI-based tools and new information technologies.
Importance of the Five Laws of Library Science
The Five Laws provide a user-centred approach to librarianship. They emphasize access, availability, user needs, efficient services and continuous development.
For LIS students, these laws are important because they provide a simple framework for understanding the objectives and functions of libraries.
Conclusion
The Five Laws of Library Science, formulated by Dr. S. R. Ranganathan in 1931, remain an important foundation of Library and Information Science.
Although libraries have changed significantly with the development of computers, the internet and digital resources, the basic principles of use, access, user needs, saving time and continuous growth remain relevant.
For LIS Exam Revision:
1. Use → 2. Reader → 3. Book → 4. Time → 5. Growth
Also Read: Library and Information Science Notes, UGC NET LIS Notes, KVS Librarian Notes and NVS Librarian Study Material.