Skip Williams Books

Here is a trove of advice and new rules for every AD&D game Dungeon Master who wishes to create adventures for truly legendary heroes. Find everything you need to create encounters that confound th...

The Rod of Seven Parts AD D Fantasy Roleplaying

By Skip Williams

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HEROES OF STEEL Dragonlance

By Skip Williams

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The Sea Devils

By Skip Williams

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Of Ships and the Sea Dmgr Rules Supplement

By Skip Williams

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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.