John Grubber Books

Bertrem'S Guide To The War Of Souls: Vol. 1

By Nancy Varian Berberick, Mary H. Herbert, John Grubber, Jeff Crook, With The Able Assistance Of Jeff Crook, John Grubber, Mary H. Herbert, And Nancy Varian Berberick

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The Bertrem's Guides give readers insights into the everyday lives of the people in the world of the Dragonlance novels. Using correspondence, reports, and essays, this second Bertrem's Guide conce...

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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.

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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.