Sarah L. Thomson Books

There are a lot of large birds that inhabit our world today—the albatross, the condor, the emperor penguin. But none of these compare to the terror bird: a bird of prey that roamed ancient So...

Ancient Animals: Plesiosaur

By Sarah L. Thomson Author Andrew Plant Illustrator

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Ninety million years ago, giant dinosaurs roamed the earth, pterosaurs ﬂew through the air, and giant reptiles and ﬁsh hunted in the oceans. The area that is now Kansas was covered by...

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.