Lisa Ryan Herndon Books

Powerpuff Girls Rainy Day Sticker Storybook PowerPuff Girls

By Lisa Ryan Herndon

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Powerpuff Girls PowerPuff Girls

By Lisa Ryan Herndon, Ryan Herndon

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The city of Townsville...has been transformed into a winter wonderland! Join the Powerpuff girls and all their friends as they celebrate Christmas, superhero-style.

Robin s Case File Teen Titans

By Lisa Ryan Herndon

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Teen Titans Robin s Case Files

By Lisa Ryan Herndon

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Codename

By Lisa Ryan Herndon

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Ocean Deep

By Lisa Ryan Herndon

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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.