Eoin Colfer Books

WARP Book 1: The Reluctant Assassin

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Riley, a teen orphan boy living in Victorian London, has had the misfortune of being apprenticed to Albert Garrick, an illusionist who has fallen on difficult times and now uses his...

Artemis Fowl 3: The Eternity Code

By Eoin Colfer

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After being held prisoner for years, Artemis Fowl's father has finally come home. He is a new man--an honest man, much to Artemis's horror. He makes his son promise to give up his life of crime,...

The Supernaturalist

By Eoin Colfer

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In the not-too-distant future, in a place call Satellite City, thirteen-year-old Cosmo Hill is unfortunate enough to come into the world unwanted by his parents. And so, as are all orphaned boys hi...

Iron Man: The Gauntlet

By Eoin Colfer

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Tony Stark is known throughout the world as many things: billionaire, inventor, Avenger. But mainly for being the Invincible Iron Man.Just when Tony is about to add his pizzazz to an international...

The Fowl Twins, Book One

By Eoin Colfer

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With all the hallmarks that made the Artemis Fowl series so popular, this hilarious spinoff adventure stars Artemis' younger brothers, along with a nefarious nobleman, a shadowy nun, and a fairy in...

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.