Thomas Walther Books

Reinventing the CFO: Moving from Financial Management to Strategic Management

By John Dunleavy, Thomas Walther, Henry Johanson, Elizabeth Hjelm

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Other Pictures

By Mia Fineman

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"A major collector of photography finds himself compelled to look past another vintage print by Walker Evans or Edward Weston. He discovers magically composed snapshots of a couple, a family, stree...

Von der Schule zum Urknall

By Thomas Walther, Erik Kremser

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Was ist Licht Von der klassischen Optik zur Quantenoptik.

By Herbert Walther, Thomas Walther

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Von der Schule Zum Urknall

By Thomas Walther, Erik Kremser

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Focus Orient

By Lehnert And Landrock Staff, Pascal Sebah, Emile Bechart, Felix Bonfils

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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.