Jody Jensen Shaffer Books

"A girl named Jasmine teaches a younger student at her school everything she has learned about lungs and the respiratory system while researching them for her booth at her school's Health Fair"--

My muscles

By Jody Jensen Shaffer

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"A boy named Lucas has injured his calf muscle in PE class. Lucas and his classmate Mia discuss the body's muscles"--

My heart

By Jody Jensen Shaffer

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"After getting their heart rates up while on a bike ride, a boy named Rico teaches his younger sister Rosa about the heart"--

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.