Joan Jonker Books

The Second World War is finally over and best friends Molly Bennett and Nellie McDonough are bursting with happiness. Their beloved sons are coming home at last and their eldest children and planni...

Dream a little dream

By Joan Jonker

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Man of the House

By Joan Jonker

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Home Is Where the Heart Is

By Joan Jonker

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Stay in Your Own Back Yard

By Joan Jonker

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When One Door Closes

By Joan Jonker

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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.