George Gruenwald Books

New product development

By George Gruenwald

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New product development

By George Gruenwald

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How to create profitable new products

By George Gruenwald

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George Gruenwald's definitive work is a comprehensive and up-to-date guide to developing new products and services. Gruenwald has experience in new product development with over 50 of the world's l...

New product development

By George Gruenwald

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Thermoforming

By George Gruenwald

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Thermoforming

By Geza Gruenwald, George Gruenwald

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Thermoforming

By George Gruenwald

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Thermoforming

By Geza Gruenwald

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Thermoforming

By Geza Gruenwald

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New product development checklists

By George Gruenwald

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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.