Helen Nicoll Books

Meg on the moon

By Helen Nicoll

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Meg tries to use a magic spell to make her vegetable garden grow, but the garden turns into a jungle.

Meg and Mog Play Hide and Seek

By Helen Nicoll

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Meg and Mog Touch and Feel Counting Book

By Jan Pienkowski, Helen Nicoll

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Puffin Cover to Cover Story Tape 4 Meg and Mog Titles

By Helen Nicoll

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Meg, Mog and Og

By Jan Pienkowski, Helen Nicoll

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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.