Queenie Chan Books

When things get scary, it’s nice to know that Odd is on our side. The one and only Odd Thomas is back—in his second edgy and enthralling graphic-novel adventure from #1 New York Times bestselling s...

In Odd We Trust (Graphic Novel)

By Queenie Chan, Dean Koontz

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“Meet a young man named Odd . . . who helps the dead get even."From the infinite imagination of #1 New York Times bestselling author Dean Koontz comes the suspenseful graphic-novel debut of a natur...

Dreaming Collection

By Queenie Chan

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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.