Margaret Mahy Books

The Pirates' Mixed-up Voyage: Dark Doings in the Thousand Islands

By Margaret Mahy

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The Changeover Plus

By Margaret Mahy

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Dangerous spaces

By Margaret Mahy

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Anthea is drawn into a ghostly nightmare when she finds some objects belonging to her great-uncle Henry. Suggested level: intermediate.

The chewing-gum rescue and other stories

By Margaret Mahy

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The Changeover: A Supernatural Romance

By Margaret Mahy

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When her little brother seems to become possessed by an evil spirit, fourteen-year-old Laura seeks the help of the strangely compelling older boy at school who she is convinced has supernatural pow...

The catalogue of the universe

By Margaret Mahy

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Determined to satisfy her curiosity about her unknown father, eighteen-year-old Angela May embarks on an emotional journey that shapes and forever alters the way she looks at herself, her unconvent...

The greatest show off earth

By Margaret Mahy

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The Changeover

By Margaret Mahy

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Memory

By Margaret Mahy

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The tricksters

By Margaret Mahy

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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.