Jason Tondro Books

Superheroes of the Round Table

By Jason Tondro

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Starfinder Adventure Path: Assault On The Crucible

By Jason Tondro, Paizo Staff

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Extinction Curse Pathfinder Adventure Path

By Paizo Staff

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Pathfinder RPG: Advanced Player’S Guide

By Steven Hammond, John Compton, James Case, Alexander Augunas, Stephen Radney-MacFarland, Jason Tondro, Sasha Laranoa Harving, Luis Loza, Jessica Catalan, Fabby Garza Marroquín, David N. Ross, Clark Valentine, Andrew White, James Jacobs, Michael Sayre, Nicolas Hornyak, Dennis Muldoon, Joan Hong, Kate Baker, Carlos Cabrera, Paris Crenshaw, Jesse Decker, Paizo Staff, Amirali Attar Olyaee, Mark Seifter, Jessica Redekop, Lyz Liddell, Patchen Mortimer, Vanessa Hoskins, Logan Bonner, Ron Lundeen, Kendra Leigh Speedling, Erik Keith, Mikhail Rekun, Brian Bauman, Alexis Riggs

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Ready to go beyond the basics? Expand the limits of what's possible with the Pathfinder Advanced Player's Guide! This 272-page Pathfinder Second Edition rulebook contains exciting new rules options...

Starfinder Adventure Path

By Paizo Staff

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Pathfinder Adventure Path

By Paizo Staff

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Graveclaw

By Jason Tondro, Paizo Staff

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Great Game

By Mike Lafferty, Mike Blum, Joe Bardales, Jason Tondro, Steve Perrin

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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.