Sarah L. Thomson Books

Feel the Summer

By Sarah L. Thomson

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Ancient animals

By Sarah L. Thomson

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Explains how scientists think saber-toothed cats lived, hunted, and became extinct. Back matter explores other large-toothed predators and provides additional print, visual, and web resources.

The Eureka key

By Sarah L. Thomson

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Sam (a puzzle master) and Martina (a history whiz) become involved in a dangerous quest to find seven keys left behind by Benjamin Franklin and a secret society of descendants, which, when gathered...

Deadly Flowers

By Sarah L. Thomson

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Kata, a ninja, embarks on her first solo mission, for which she must enter a warlord's castle and make sure that a certain sleeping occupant never awakens. But then Kata discovers that her target i...

Deadly Wish

By Sarah L. Thomson

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This sequel to Deadly Flowers is a fast-paced and compelling read with a multitude of astonishing plot twists. Kata is one of the best employees of a master thief until he sells her to Madame Chiyo...

The Eureka key

By Sarah L. Thomson

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Mercy

By Sarah L. Thomson

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Fourteen-year-old Haley is struggling to cope. She?s got a new stepmom and baby brother. Her cousin Jake is dying from a terminal illness. Her grades are slipping. And the boy she likes is dating h...

Mercy

By Sarah L. Thomson

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Imagina Un Dia Imagine a Day

By Sarah L. Thomson

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Whimsical thoughts, bringing colorful and happy images to the reader.

What Lincoln Said

By Sarah L. Thomson

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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.