Dierk Koenig Books

Groovy In Action

By Dierk König, Guillaume Laforge, Paul King, Jon Skeet, Dierk Koenig, Andrew Glover, Dierk Koenig, Andrew Glover, Paul King, Guillaume Laforge, Jon Skeet, James Gosling

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Courtesy of Filip Pajak from Szczecin JUG: This book is split into three parts. First one is about language, second is about advanced features which coming with Groovy distribution, and third cont...

Groovy in Action

By Dierk Koenig, Cedric Champeau, Paul King, Hamlet D Arcy

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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.