Gayle Callen Books

Hot And Bothered: Four Steamy Tales of Love and Seductionthat Will Leave You...

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Never Dare a Duke

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Miss Abigail Shaw is desperate to save her father's newspaper, and what better way than to uncover the secrets of the scandalous Cabot family? Besides, no man can be that perfect. So Abigail risks...

Could she be the brazen lady who posed for the scandalous portrait? Lady Elizabeth Cabot is no longer the reckless girl she once was. Now the darling of the ton, she is determined to put her past b...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.