Mary Chapman Books

Virus

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"Every aspect of Penna's life is controlled for her: a computer programme tells her when to get up, eat, sleep. But one day the programme goes wrong. Suddenly Penna and her new friend, Veeka, don't...

Amy's Slippers

By Mary Chapman

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Amy's mum is fed up with dirty footprints on the carpet, but Amy says that she can't find her slippers. Now, if only she had some magic ones - wouldn't that be great? Guess what is waiting for her...

Amy's Slippers

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Hauntings

By Mary Chapman

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It's Rebecca Jane's birthday, the first in her family since her mum died. Dad eagerly gives her a present, but when Rebecca opens it she unwittingly steps into a living nightmare.

Wait a Minute, Ruby!

By Mary Chapman

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Wait a Minute Ruby

By Mary Chapman

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Sentimental Men

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Sentimental Men

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The Geology of Mars

By Mary Chapman

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Treacherous Texts

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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.