Charles B. Harrington Books

Tarot of the Vampires

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Sink Your Fangs into the Mysteries of Life and Seek Out Your Darkest Desires This thrilling deck resurrects vampire archetypes for a new age. These children of the night are modern, nuanced, and d...

Dante's Inferno Oracle Cards

By Paolo Barbieri, Charles B. Harrington

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Known for his magnificent decks, including Barbieri Zodiac Oracle and Barbieri Fantasy Cats Oracle, Paolo Barbieri returns with a stunning new oracle inspired by The Divine Comedy. These soul-stirr...

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.