John Compton Books

Stranger in the Attic of Clouds

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Starfinder Deck of Endless NPCs

By Solomon St. John, Jessica Catalan, Jason Keeley, Joe Pasini, John Compton, Sonja Morris, Jason Bulmahn, Erik Mona, Adam Daigle, Linda Zayas Palmer, Mark Moreland, Kyle Stanley Hunter

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Creating an impromptu, original character every time the heroes meet a contact on a crowded space station or chat with a local on an alien planet can be a challenge, but the Starfinder Deck of Endl...

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.