Heine Hansen Books

Lung Cancer Therapy Annual

By Jr. Paul A. Bunn, Heine Hansen, Karen Kelly, Heine H. Hansen

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History of philosophy in reverse

By David Bloch, Sten Ebbesen, Heine Hansen, Ana Maria Mora Marquez, Jakob L. Fink

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John Pagus on Aristotle s Categories

By Heine Hansen

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The 'Rationes super Praedicamenta Aristotelis' of John Pagus is one of the earliest known literary products of the Arts Faculty of the University of Paris. Written in the 1230s, it is among the fir...

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.