Carol Ballard Books

This book explores the structure of bones and joints and how they form the skeleton that supports the body; explains the different injuries and illnesses that can affect our bones; and outlines way...

Digestive System

By Carol Ballard, Heinemann Library Staff, Adam Miller

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Heart and blood

By Carol Ballard

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Explores the structure of the heart and how the circulatory system transports essential substances to the cells all over our bodies. It explains the different illnesses or conditions that can affec...

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.