Ruud Haak Books

"Internationally recognized dog handlers Resi Gerritsen and Ruud Haak discuss a range of K9 investigation errors from past and present, including examples of poor technique and outright fraud from...

K9 Drug Detection

By Resi Gerritsen, Ruud Haak

Average: 0.00, 0 Ratings

K9 explosive and mine detection

By Resi Gerritsen

Average: 0.00, 0 Ratings

De Bobtail

By Ruud Haak

Average: 0.00, 0 Ratings

Beschrijving van dit honderas.

De Engelse cocker spaniel

By Ruud Haak

Average: 0.00, 0 Ratings

Informatie over rasmerken, eigenschappen, opvoeding en verzorging, fokken en tentoonstellingen.

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.

Ruud Haak Books

Related Articles from our Blog

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?