Angie Knowles Books

The Crumrin Chronicles Vol. 1: The Charmed & The Cursed

By Keith Wood, Warren Wucinich, Ted Naifeh, Oni Press, Sonja Synak, Angie Knowles

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In this new spin-off from the New York Times bestselling Courtney Crumrin series the powerful young sorceress Courtney Crumrin has battled against all manner of evil forces, but helping her little...

A Quick & Easy Guide To Asexuality

By Molly Muldoon, Will Hernandez, Angie Knowles

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"An engaging and essential handbook for anyone interested in gaining insight into an oft-misunderstood community." — Library Journal This book is for anyone who wants to learn about asexuality, and...

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.