Darrell Hayhurst Books

Torg Eternity - Dice Pack

By Shane Lacy Hensley, Darrell Hayhurst, Aaron Acevedo

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This blister pack contains two d20 and 4 six-sided “bonus dice”. All the dice have the distinctive mixed red and blue coloring of the original Torg dice. The bonus die’s sixth side is an eternity s...

Torg Eternity Drama Deck

By Shane Lacy Hensley, Darrell Hayhurst, Aaron Acevedo

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Space 1889

By Darrell Hayhurst, Rachel Savicki

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Space 1889

By Darrell Hayhurst, Rachel Savicki

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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.