Daniel D Fox Books

ZWEIHANDER Grim Perilous RPG

By Daniel D Fox

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ZWEIHANDER Grim & Perilous RPG: Gamemaster Folio

By Daniel D Fox

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Dark Astral Grim & Perilous Chapbook

By Daniel Fox, Daniel D Fox, Daniel D. Fox

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It is the far future, but one seen through the eyes of the Renaissance and intermingled with the New Testament. Following the desecration of the garden world Eden, humanity fled in a diaspora to th...

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.