What is ISBN?
The ISBN (International Standard Book Number) is a universal identification number assigned to books. It ensures that each book title has a unique identifier, facilitating accurate data management in purchasing, exchange, and library services.

How to Request an ISBN for General Books
There are two ways to request this service:

1. Request Through the Library

   • Fill out the ISBN Request Form (click here).
   • Receive the ISBN within 1 business day.
   • Pay a service fee of 50 THB per item.
   • Submit two copies of the book to the National Library of Thailand.
     This service is available only for faculty and staff of Prince of Songkla University.

2. Request Directly from the National Library of Thailand
   Users can contact the National Library of Thailand directly for ISBN services:

   • Visit: https://e-service.nlt.go.th/
   • Phone: 0-2280-9845
   • Email: isbn@nlt.go.th, issn@nlt.go.th