Helen McCarthy Books

Things Kids Collect
Things Kids Collect

By Helen McCarthy, Shari Lewis

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Suggests activities for collectors interested in more than 25 different collectibles such as rocks, keys, buttons, and menus.

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500 Manga Heroes and Villains
The anime movie guide
The anime movie guide

By Helen McCarthy

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Women of the world
Women of the world

By Helen McCarthy

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Fathers Day The Monsters In The Truck
The Anime Encyclopedia 3rd Revised Edition
London calling
London calling

By Helen McCarthy

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Network logic
Network logic

By

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16 days
16 days

By Rachel Briggs

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Home alone
Home alone

By Helen McCarthy, Michael Power

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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.

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