Karl Petersen Books

Ergodic Theory and Harmonic Analysis: Proceedings of the 1993 Alexandria Conference

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Ergodic theory is a field that is lively on its own and also in its interactions with other branches of mathematics and science. In recent years the interchanges with harmonic analysis have been es...

Bellowing in the common

By Karl Petersen, Robert Raymer Alloway

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The Kingdom of What Is

By Karl Petersen

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Reformed

By Karl Petersen

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Bellowing in the common

By Karl Petersen

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Systematischer Praxiskommentar Bilanzrecht

By Karl Petersen, Christian Zwirner, Gerrit Brosel

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Entropy of Hidden Markov Processes and Connections to Dynamical Systems

By Tsachy Weissman, Karl Petersen, Brian Marcus

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Stars Beyond the Veil

By Karl Petersen

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Stars Beyond the Veil

By Karl Petersen

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Entropy of Hidden Markov Processes and Connections to Dynamical Systems

By Tsachy Weissman, Karl Petersen, Brian Marcus

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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.