SJ King Books

The Timekeepers: The Tesla Trap

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The Timekeepers are a secret organization of kids who keep the course of history on track. And history needs them—a villain called DeLay is causing chaos!When the hands on their watches start to sp...

The Secret Explorers and the Sunken Treasure

By SJ King

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Learn about sharks and pirates in this ocean themed instalment of DK Books' new educational fiction series for children. Meet the Secret Explorers - a band of brainiac kids from all around the worl...

The Secret Explorers and the Cave Crisis

By SJ King

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Learn all about life in the desert with this nature-themed installment of DK’s educational fiction series for children aged 7 to 9 years old. Meet the Secret Explorers - a band of brainiac kids fro...

The Secret Explorers and the Rainforest Rangers

By SJ King

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Swing into this rainforest adventure in this action-packed conservation themed installment of DK Books' new educational fiction series for children.Meet the Secret Explorers - a band of brainiac ki...

The Secret Explorers and the Smoking Volcano

By SJ King

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Discover the power of an erupting volcano in this explosive installment of DK Books' new educational fiction series for children.Meet the Secret Explorers - a band of brainiac kids from all around...

The Secret Explorers and the Missing Scientist

By SJ King

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Meet the Secret Explorers! Children will be inspired to discover the world with these character-driven adventure stories for children aged 7 to 9 years old.Learn all about polar expeditions and the...

The Timekeepers: Samurai Saga

By SJ King

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Tag along with the Timekeepers in these history-themed adventure stories and discover amazing people and events that shaped our world.Join the Timekeepers in this chapter book series for 7 to 9 yea...

The Timekeepers: Samurai Saga

By SJ King

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The Timekeepers: Eiffel Tower Emergency

By SJ King

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Tag along with the Timekeepers in these history-themed adventure stories to discover amazing people and events that shaped our world.Meet the Timekeepers, a secret organization of kids who keep the...

The Timekeepers: The Tesla Trap

By SJ King

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The Timekeepers are a secret organisation of kids who keep the course of history on track - and history needs them - a villain called DeLay is causing chaos! When the hands on their watches start t...

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.

SJ King Books

Related Articles from our Blog

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?