Willabel L. Tong Books

Harry Potter Hogwarts School

By Willabel L. Tong, Renee Jablow, Joe Vaux

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My School Box My Numbers

By Willabel L. Tong, White Heat Ltd.

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Cars, boats, trains, & planes

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Racing cars, speedy boats, rushing trains and whooshing planes -- here's a bold, colorful collection of fast-moving vehicles for your fast-moving child. Interactive pop-ups and fold-outs are full...

Medieval Castle

By Willabel L. Tong, Intervisual Communications, Phil Wilson

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A three-dimensional book that opens to reveal two stories and five rooms of a medieval castle, with decorative details, pop-up furniture, a drawbridge, and press-out pieces that include knights, la...

Baby dinosaurs

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The Best Christmas Story Hide Away Books

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The Best Christmas Gift Hide Away Books

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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.