Paul Pechan Books

The factors affecting water quality are many: the increasing buying power and health concerns of the world population contribute to the creation of new products, whose production and disposal lead...

Safe or Not Safe

By Ortwin Renn, Paul Pechan, Ingemar Pongratz, Allan Watt

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Genes on the Menu

By Paul Pechan, Gert De Vries

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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.