Isabel Thomas Books

Emma Peror is sure she's the best ballerina EVER! When Trixie gives her a tutu that's invisible to bad dancers, Emma won't admit she can't see anything at all. But will she see through Trixie's plan?

Terrific Timelines Cars

By Richard Ferguson, Isabel Thomas

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Marie Curie

By Isabel Thomas

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Marie Curie was a brilliant scientist who coined the term "radioactivity," discovered polonium and radium, and helped develop treatments for cancer. She was the first woman to win a Nobel Prize, bu...

Marie Curie

By Isabel Thomas

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Amelia Earhart

By Isabel Thomas

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"Why is Amelia Earhart an aviation hero? She was the first woman to fly solo across the Atlantic Ocean, broke flying records and wrote best-selling books, and fought for the equal treatment of wome...

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.