Christopher Edge Books

Harrison wordt gerekruteerd wordt door de Elite, een speciale afdeling van de Britse geheime dienst waar jongeren Engeland beschermen tegen cyberaanvallen. Vanaf ca. 13 jaar.

The Longest Night of Charlie Noon

By Christopher Edge

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This heart-pounding mystery-adventure follows three kids who get lost in the woods at night and experience something they cannot quite explain.Secrets, spies, or maybe even a monster . . . what lie...

Twelve minutes to midnight

By Christopher Edge

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Penelope Tredwell is the feisty thirteen-year-old orphan heiress of Victorian Britain's bestselling magazine, the Penny Dreadful. Her spine-chilling tales--concealed under the pen name Montgomery F...

The Black Crow conspiracy

By Christopher Edge

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"In 1902, fifteen-year-old Penelope Tredwell, magazine publisher and writer of macabre tales, must uncover a mystery surrounding the theft of the Crown Jewels and a thief that can walk through wall...

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.