Chris Allan Books

Elizabeth Blackadder Prints

By Elizabeth Blackadder, Chris Allan

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Teenage Mutant Ninja Turtles Adventures Volume 10

By Chris Allan

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The all-ages action continues in this collection of TMNT Adventures! Collects issues #41–44 of the Archie Comics series, including "The Future Shark Trilogy" and Mighty Mutanimals #7.

Teenage Mutant Ninja Turtles Adventures Volume 13

By Dean Clarrain Chris Allan

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The all-ages action continues in this collection of TMNT Adventures! Collects issues #55–57 and Mighty Mutanimals #8–9 of the Archie Comics series.Included are the stories "Te...

PILOTES DE SUPERSONIQUES by Baudry Patrick

By N A

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Super jets

By Chris Allan

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Fotoboek over moderne jachtvliegtuigen.

Tales of the Teenage Mutant Ninja Turtles Volume 4

By Daniel R. Berger, Jim Lawson, Chris Allan

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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.