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Hans Wilhelm Books

Buzz Said the Bee

By Hans Wilhelm, Wendy Cheyette Lewison

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Estoy perdido!

By Hans Wilhelm

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A little dog gets lost and learns to find his way home again.

Neuropsychologische Gutachten

By Rupert Roschmann, Hans Wilhelm

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A new home, a new friend

By Hans Wilhelm

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Michael's anxieties over moving to a new house are alleviated by the friendship of a large dog.

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.

Hans Wilhelm Books

Je Peux Lire Niveau 1

Buzz Said the Bee

Estoy perdido!

No kisses, please!

The Trapp Family Book

Je peux lire Niveau 1

Hello Sun

Neuropsychologische Gutachten

A new home, a new friend

Tell Me about Dying

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