Gregory Copeland Books

Who HQ brings you the stories behind the most beloved characters of our time.This What Is the Story of? title is out of this universe! Learn the history of the Time Lord, the TARDIS, and the epic b...

What Is the Story of Doctor Who?

By Gabriel P. Cooper Illustrated By Gregory Copeland

Average: 0.00, 0 Ratings

Who Is Jackie Chan?

By Jody Jensen Shaffer Illustrated By Gregory Copeland

Average: 0.00, 0 Ratings

How did Jackie Chan become one of the most recognizable and beloved actors in the world? Find out in this exciting biography of this martial artist turned international film superstar.When Kong-san...

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.