Book Services

Breaking Down Book Identifiers: ISBN, Amazon’s ASIN, and Google’s GGKEY


In the world of book publishing, unique identifiers play a crucial role in cataloguing and tracking books. Three of the most common identifiers are ISBN, Amazon’s ASIN, and Google’s GGKEY. In this article, we will explore each of these identifiers, highlighting their differences and uses in the publishing industry.

Understanding ISBN, ASIN, and GGKEY

ISBN (International Standard Book Number): An ISBN is a unique numeric identifier assigned to books, making it easier to track, search, and acquire them across various platforms. ISBN numbers are issued by authorized agencies and are globally recognized, helping to standardize the identification process for books in the publishing industry.

ASIN (Amazon Standard Identification Number): Amazon’s ASIN is a unique identifier assigned to products within the Amazon marketplace, including books. ASINs are exclusive to Amazon’s platform but can coexist with ISBNs, as Amazon recognizes and accepts ISBNs for books. If a book does not have an ISBN, Amazon will assign an ASIN to it for tracking purposes within their ecosystem.

GGKEY (Google Books Key): GGKEY is an identifier assigned by Google to books within the Google Books platform. Like ASINs, GGKEYs are exclusive to the Google platform. If a book has an ISBN, Google Books will recognize and accept it, but for books without an ISBN, a GGKEY will be assigned for tracking purposes on Google Books.

Subtitle: The Key Differences Between ISBN, ASIN, and GGKEY

While ISBN, ASIN, and GGKEY all serve as unique identifiers for books, their scope, purpose, and platform specificity differ:

  1. Universality: ISBN is a globally recognized and standardized identifier, while ASIN and GGKEY are platform-specific to Amazon and Google Books, respectively.
  2. Scope: ISBN is primarily intended for books, whereas ASIN covers a wide range of products within the Amazon marketplace, including books.
  3. Platform Recognition: Both Amazon and Google Books recognize and accept ISBNs, streamlining the identification process across various platforms. However, ASINs and GGKEYs are exclusive to their respective platforms and not interchangeable.
  4. Standardization: ISBN promotes standardization in the publishing industry, making it easier for authors, publishers, booksellers, and libraries to track and manage books. In contrast, ASIN and GGKEY are limited to their respective platforms and do not contribute to industry-wide standardization.

In conclusion, while ISBN, Amazon’s ASIN, and Google’s GGKEY all function as unique identifiers for books, they differ in scope, universality, platform recognition, and standardization. For authors and publishers, acquiring an ISBN is highly recommended to ensure seamless identification and tracking of their books across multiple platforms, contributing to a more organized and efficient publishing industry.

⚠️ Should you require assistance with creating, publishing, marketing, or any aspect of book publishing, Hexa Book Services stands as a trusted industry leader in providing expert consultation, publishing support, and aiding authors in establishing a robust online presence. Don’t hesitate to contact us for a complimentary consultation, and we’ll be more than happy to guide you through the process.

Free Consultation »

More to explore

The Importance of ISBN Numbers in Publishing Success

An International Standard Book Number (ISBN) is a unique numeric identifier assigned to books, serving as a standardized code to facilitate tracking, search, and acquisition. In this article, we’ll delve