Caroline Castle Books

The hare and the tortoise

By Caroline Castle

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Crazy Knitting

By Sarah Ginsberg

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Gives step-by-step, illustrated, instructions for learning basic stitches and knitting techniques and includes patterns for scarves, leg warmers, hats, and other simple projects.

Herbert Binns and the Flying Tricycle

By Caroline Castle

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Grandpa Bodley and the Photographs

By Caroline Castle

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For every child

By Caroline Castle

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A simple retlling of fourteen principles from the Rights of the Child adopted by the United Nations in 1989, illustrated by various artists including Rachel Isadora and Terry Pinkney.

Gorgeous

By Caroline Castle, Sam Childs

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Naughty

By Caroline Castle

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Happy!

By Caroline Castle

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Little Zeb and Friends Little Zeb

By Caroline Castle

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Grandpa Bodley and the photographs

By Caroline Castle

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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.