Robyn Holdaway Books

Our Wives Under the Sea

By Annabel Baldwin, Robyn Holdaway, Julia Armfield

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Something Spectacular

By Robyn Holdaway, Alexis Hall

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Our Wives Under the Sea

By Annabel Baldwin, Robyn Holdaway, Julia Armfield

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The Vampire Book

By DK

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Get your teeth into all things vampire.Does your child love vampires? Then bring them face to fang with these evil beings.From how to kill a vampire, to famous profiles including Vlad the Impaler,...

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.