Terry J Erdmann Books

Labyrinth

By Terry J Erdmann, Paula M Block

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The 4400

By Terry J. Erdmann

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The Art of Star Trek Discovery

By Paula Block, Terry Erdman

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The official Star Trek: Discovery art book.Star Trek: Discovery, the newest chapter in the Star Trek Universe, follows the exploits of Vulcan-raised science officer Michael Burnham and the crew of...

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.