Karla Courtney Books

Little Land of Knitting

By Karla Courtney

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LILYGREATESTKID TW

By Karla Courtney

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Noah Is The Greatest

By Karla Courtney

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Poppy's House

By Karla Courtney Illustrated By Madeline Kloepper

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A warm story of the bond between young and old that evokes the wild, windswept banks of Newfoundland—and the joys of a traditional way of life.In a picture book as cozy as wool socks and as s...

Irelands Greatest Kid

By Cinta Villalobos, Karla Courtney

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Londons Greatest Kid

By Cinta Villalobos, Karla Courtney

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Scotlands Greatest Kid

By Cinta Villalobos, Karla Courtney

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SOPHIAGREATESTKID TW

By Karla Courtney

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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.