Anja Frohlich Books

Papier Global 4

By Birgitta Petschek Sommer, Anja Frohlich

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Halb echt.

By Anja Frohlich

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Der grosse Jahreszeitenschatz

By Anja Frohlich, Maren Von Klitzing, Ann Katrin Heger, Petra Steckelmann, Jan David Talleur, Anne Ameling, Barbara Rose

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Ganz ehrlich Filippa

By Anja Frohlich

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Animals in the outhouse

By Anja Frohlich

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A new forest ranger, eager to prove himself, installs an outhouse for animals so that the forest will be tidier but although the animals enter, one after another, and claim success, none can figure...

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.