Brigitte Post Books

Warum Mathematik?

By Brigitte Post, Harald Höfner, Ian Stewart

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Mathematische Rätsel Für Liebhaber

By Brigitte Post, Harald Höfner, Peter Winkler

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Peter Winkler, der bekannte Mathematiker und Rätselexperte, veröffentlicht in diesem Buch seine Rätselsammlung, die er in Jahrzehnten zusammengestellt hat. Jetzt können Sie sich an mehr als 100 der...

Warum (Gerade) Mathematik?: Eine Antwort In Briefen

By Harald Höfner, Ian+, B., *STEWART, H-------., Brigitte Post, Hafner, Post, Ian Stewart

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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.