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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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...

Victorian Doll House

By Willabel L. Tong

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Baby Animals A Cuddly Cloth Book

By Willabel L. Tong

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Merry Faces Christmas A Cuddly Cloth Book

By Willabel L. Tong

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A three dimensional medieval castle

By Willabel L. Tong, Phil Wilson

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Numbers

By Willabel L. Tong

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My Toys

By Willabel L. Tong

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Farm Faces Cuddly Cloth

By Willabel L. Tong

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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.