👉 The ISBN (International Standard Book Number) fluid, also known as the ISBN fluid, is a mechanism designed to ensure the seamless and automated exchange of ISBNs between different systems and databases. It acts as a standardized, dynamic identifier that can be generated and updated without manual intervention, making it easier for publishers, libraries, and retailers to manage and distribute books globally. This fluid system supports the creation of a single, consistent ISBN for each book, regardless of the publisher or the country of publication, thereby reducing errors and simplifying the process of tracking and licensing books across various platforms.