Jessica Dee Humphreys Books

Child Soldier

By Howard Hughes

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Child Soldier

By Jessica Dee Humphreys, Claudia Davila

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Child Soldier

By Jessica Dee Humphreys

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Michel is like many other five-year-olds: he has a loving family and spends his days going to school and playing soccer. But in 1993, the Democratic Republic of Congo, where Michel and his family l...

One Shot Child Soldier When Boys and Girls Are Used in War OS Child Soldier

By Jessica Dee Humphreys, Michel Chikwanine

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International Day of the Girl

By Jessica Dee Humphreys, Simone Shin, Rona Ambrose

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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.