Soren E. Jensen Books

Thomsen som vi kender ham

By Stefan Lamhauge Hansen, Soren Ulrik Thomsen, Soren E. Jensen

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Rode Kai og hans kriminelle karriere

By Soren E. Jensen

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Kai Bo Rasmussens (f. 1947) personlige historie fra det kriminelle miljø på Vesterbro i halvfjerdserne og firserne, hvor han startede som hyrevognschauffør i 1968 og senere blev indehaver af den fø...

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.