Peter Grunwald Books

Eyebody

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"Peter Grunwald wore glasses for myopia and astigmatism for 27 years. He studied the Alexander Technique which bought postural, speech and mental improvements, then he trained with Janet Goodrich i...

Bruiser

By Peter Grunwald

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Bruiser

By Peter Grunwald

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Biocatalysis

By Peter Grunwald

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Biocatalysis

By Peter Grunwald

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Industrial Biocatalysis

By Peter Grunwald

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Pharmaceutical Biocatalysis

By Peter Grunwald

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Pharmaceutical Biocatalysis

By Peter Grunwald

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Pharmaceutical Biocatalysis

By Peter Grunwald

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Pharmaceutical Biocatalysis

By Peter Grunwald

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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.