Robert Tregoning Books

This picture book about a boy who overcomes his fear of being different is a celebration of diversity, acceptance, and pride, perfect for fans of Julián is a Mermaid.In a very blue house, on a very...

Dress in the Window

By Pippa Curnick, Robert Tregoning

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What the Crow Saw Below

By Greg Stobbs, Robert Tregoning

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Out of the Blue

By Robert Tregoning

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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.