Catherine Ard Books

Astronaut in training

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Step into the shoes of an space cadet! Learn all about space, discover what life is like on the ISS and complete activities to find out if you have what it takes to be an astronaut in training!

Scientist in Training

By Catherine Ard

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Sports Star in Training

By Sarah Lawrence, Cath Ard

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Dino Detective In Training

By Catherine Ard

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Eco Hero In Training

By Sarah Lawrence, Jo Hanks

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The Double Edged Helix

By Jon Beckwith, Joseph S. Alper

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Explores the impact of recent genetic discoveries on both different population segments and society as a whole. The authors address the medical and ethical implications of the new technologies, out...

A Treasury of Christmas Stories and Songs

By Parragon

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A treasury of Christmas stories and songs

By Catherine Ard, Michael Diggle

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Hansel And Gretel Sticker Activity Fairytale Sticker

By Catherine Ard

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Origami holidays

By Cath Ard

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Provides detailed directions for folding several holiday decorations.

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.