Hanna Jansen Books

Over a Thousand Hills I Walk with You

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Over a thousand hills I walk with you

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"Before one fateful April day, Jeanne lived the life of a typical Rwandan girl. She fought with her little sister, went to school, and teased her brother. Then, in one horrifying night, everything...

Uber tausend Hugel wandere ich mit dir

By Hanna Jansen

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Uber tausend Hugel wandere ich mit dir.

By Hanna Jansen

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Ich heirate Felixa. Ab 6 J. .

By Barbara Korthues, Hanna Jansen

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Schone Weihnachten

By Oliver Potzsch, Oliver Scherz, Edith Schreiber Wicke, Joachim Friedrich, Hanna Jansen, Michael Ende, Astrid Frank, Ulrike Kuckero, Sabine Bohlmann, Otfried Preussler

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Mensch sucht Sinn

By Sybil Rosen, Ghazi Abdel Qadir, Vanamali Gunturu, Hanna Jansen, Judith Klein

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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.