Sandy Roydhouse Books

Off to Africa

By Sandy Roydhouse

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Farewell to boyhood

By Sandy Roydhouse

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Kayne is a Cook Island boy. He is having his hair cut for the first time. Join Kayne on his special day. Then find out how Kayne and his family show their respect for the ways of the past.

Fishing with the Birds

By Lynette Evans

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The Chance to Dance

By Sandy Roydhouse

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Off to Africa

By Sandy Roydhouse

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The White Jaguar

By Susan Brocker

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The greatest wall of all

By Mary Atkinson

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Oceans of the world

By Sandy Roydhouse

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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.