Hans Citroen Books

Jobsveem Rotterdam een gebouw in beweging 1912 2008

By Hans Citroen

Average: 0.00, 0 Ratings

Auschwitz Oswiecim

By Hans Citroen

Average: 0.00, 0 Ratings

(Foto)verslag van de Poolse omgang met het grootste vernietinginscomplex van de Holocaust.

Auschwitz Oswiecim Oswiecim Auschwitz

By Hans Citroen

Average: 0.00, 0 Ratings

The Auschwitz Museum was established in 1947 as a monument to the Polish resistance. In the late eighties Hans Citroen met Barbara Starzyńska and he ended up visiting her relatives in Oswiecim, the...

Auschwitz de Judenrampe

By Hans Citroen

Average: 0.00, 0 Ratings

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.