Karin Sperhake Books

Umweltreise, 2. Schuljahr, Neue Rechtschreibung, Druckschrift

By Martin Flügel, Katharina Knebel, Wolfgang Mummert, Marita Koblenz-Lüschow, Klaus Petong, Harald Larisch, Cleo-Petra Kurze, Larissa Peiffer-Rüssmann, Helga Peters, Karin Sperhake

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Lesereise, Neue Rechtschreibung, 2. Schuljahr

By Heidelinde Foster, Barbara Sengelhoff, Antje Fischer, Marita Koblenz-Lüschow, Karin Sperhake, Dr. Christine Kretschmer, Marianne Sommerfeldt

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Sprachreise, Neue Rechtschreibung, Schülerbuch, Druckschrift

By Astrid Kettschau, Anne Ebert, Heidelinde Foster, Christine Kretschmer, Marita Koblenz-Lüschow, Harald Larisch, Sieglinde Von Beckerath, Astrid Arauner, Karin Sperhake, Dr. Christine Kretschmer, Marianne Sommerfeldt, Birgit Schorn

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Sprachreise, Neue Rechtschreibung, Schülerbuch, Schulausgangsschrift, Erw. Ausgabe

By Astrid Kettschau, Heidelinde Foster, Christine Kretschmer, Marita Koblenz-Lüschow, Sieglinde Von Beckerath, Astrid Arauner, Karin Sperhake, Dr. Christine Kretschmer, Marianne Sommerfeldt, Birgit Schorn

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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.