Tracy Duncan Books

The man who loved the sea

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An old man remembers when the seashore was alive with wildlife, before pollution changed everything, and decides that he must do something about it. Also includes factual information about marine r...

My Maori Alphabet

By Tracy Duncan

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The apple

By Benjamin Brown

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One day a girl called Blossom picks a golden apple from a magic apple tree. Little does she realise that she is not the only one who wants this special apple, and the end of the day brings a remark...

Nanny Mihi and the Bellbird

By Tracy Duncan, Melanie Drewery

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Nanny Mihi and the Rainbow

By Tracy Duncan, Melanie Drewery

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Broken Tears

By Tracy Duncan

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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.