Patrick, Den Books

Witchsign

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From celebrated fantasy author Den Patrick comes WITCHSIGN, the first novel in a fresh and exciting new fantasy trilogy It has been seventy-five years since the dragons' rule of fire and magic was...

Witchsign

By Den Patrick, Patrick, Den

Average: 0.00, 0 Ratings

From celebrated fantasy author Den Patrick comes WITCHSIGN, the first novel in a fresh and exciting new fantasy trilogy It has been seventy-five years since the dragons' rule of fire and magic was...

The Boy Who Wept Blood The Erebus Sequence

By Den Patrick

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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.