Jennifer L. Johnson Books

"Trouble seems to following Ash and his team around! A Quagsire takes the GS Ball. A young boy at a Poḱémon Trainer school tries to catch Pikachu. And Team Rocket is up to their usual troublesome t...

All fired up

By Jennifer L. Johnson

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Charizard can only get stronger if it leaves Ash -- forever. But that means Ash has no Fire-type Pokemon at all. Have his dreams of becoming a Pokemon Master gone up in flames?

Secrets of the GS ball

By Jennifer L. Johnson

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"What's bugging Ash? Ash heads to Azalea Town to battle for the Hive Badge. But first he has to finish a top-secret mission for Professor Oak. The mysteries of the GS Ball are about to be revealed...

Battle for the Zephyr Badge

By Jennifer L. Johnson

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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.