Annette Langen Books

Cartas de Felix

By Constanza Droop, Annette Langen

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Letters from Felix

By Langen Annette

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Sophie is unhappy when she loses her stuffed rabbit at the airport on the way home from summer vacation, but then she begins receiving letters from him as he visits various places before returning...

Letters from Felix

By Laura Lindgren, Annette Langen

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Felix and the Flying Suitcase Adventure New Felix Adventure

By Marianne Martens, Annette Langen

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Nouvelles lettres de mon lapin

By Annette Langen

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Dans "Lettres de mon lapin : Félix fait le tour du monde", Félix écrit d'un peu partout dans le monde. Cette fois-ci, c'est au musée que Sophie le perd. Elle reçoit des lettres du Moyen Age, de l'â...

Ein Weihnachtswunder fur drei

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Die Geschichte von Weihnachten

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Rufus der kleine Osterwaschbar

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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.