Christopher Nicholas Books

Meet Luke Skywalker, Obi-Wan Kenobi, Yoda, and all the brave Jedi from the epic Star Wars space saga! Featuring stunning retro illustrations, this book is perfect for Star Wars—and Little Gol...

I Am a Droid (Star Wars)

By Golden Books Illustrated By Chris Kennett

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Meet R2-D2, C-3PO, and all the loyal droids from the epic Star Wars space saga! Featuring stunning retro illustrations, this book is perfect for Star Wars—and Little Golden Book—fans of...

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.