Robert Brookes Books

Legendary Planet

By Darrin Drader, Mike Welham, Jonathan H. Keith, Chris A. Jackson, Robert Brookes, Jason Nelson, Steven T. Helt

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Path of the Bound

By David N. Ross, Robert Brookes, Clinton J. Boomer, Jason Nelson

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Ruins of Azlant Pathfinder Adventure Path

By Paizo Staff, Robert Brookes

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Tao Te Ching

By Robert Brookes

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Pathfinder Campaign Setting: Inner Sea Temples

By Robert Brookes

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From modest shrines to soaring cathedral spires, the seats of godly faiths fill the lands of the Inner Sea. Now Game Masters and players alike can explore the inner workings of six of the Pathfinde...

Treasury of the Machine

By Tim Hitchcock, Jonathan Keith, Jeff Lee, Robert Brookes

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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.