Mairi Hedderwick Books

Katie Morag's two very different grandmothers, plain Grannie Island and sophisticated Granma Mainland, don't seem to like each other until Granma Mainland's secret beauty formula saves the day for...

Katie Morag and the tiresome Ted

By Mairi Hedderwick

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Katie's bad mood at the birth of a baby sister culminates in her throwing her teddy bear into the sea; fortunately he comes back, and in restoring him she becomes her old self.

Katie Morag and the Big Boy Cousins

By Mairi Hedderwick

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Katie Morag's annual visit to her grandmother is disrupted by her wild and unruly Big Boy Cousins, who tempt her into joining them in a naughty game in the village when they should be doing chores.

Katie Morag Delivers the Mail

By Mairi Hedderwick

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Little Katie is charged with delivering the mail, but a fall in the water obliterates the addresses.

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.