Hermann Hähl Books

Compact Projective Planes

By Helmut Salzmann, Dieter Betten, Theo Grundhofer, Rainer Lowen, Hermann Hahl, Markus Stroppel

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Compact Projective Planes

By Rainer Löwen, Hermann Hähl, Markus Stroppel, Dieter Betten, Helmut Salzmann, H. Salzmann, Theo Grundhöfer

Average: 0.00, 0 Ratings

The aim of the series is to present new and important developments in pure and applied mathematics. Well established in the community over two decades, it offers a large library of mathematics incl...

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.