Gillian Shields Books

Just as Sophie and her friends start to make their way back to Coral Kingdom with the magic crystals for Queen Neptuna, a storm whipped up by the evil Mantora, throws them right off course! Sophie...

Holly Takes a Risk Mermaid SOS

By Gillian Shields

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Scarlett s new friend

By Gillian Shields

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Adventure fiction. Coral Kingdom is protected by six powerful crystals which fade each year and have to be replaced. Queen Neptuna sends six young mermaids on a mission to fetch the new crystals. C...

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.