Monika Helfer Books

Panorama

By Daniel Jelitzka, Michael Kohlmeier, Roland Jorg, Monika Helfer, Gerald Matt

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Mit dem Siegeszug der Photographie in den USA waren insbesondere von Anfang des 19. Jahrhunderts bis in die späten 1950er-Jahre sogenannte ?Yard Long Photographs? sehr verbreitet. Von Präsidentenin...

Schau mich an wenn ich mit dir rede

By Monika Helfer

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Bestien im Fruhling

By Monika Helfer

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Die Bagage

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Lowenherz

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Rosie und der Urgrossvater

By Monika Helfer, Michael Kohlmeier

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Der Neffe. Erzahlung.

By Monika Helfer

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Oskar und Lilli.

By Monika Helfer

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Mein Morder.

By Monika Helfer

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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.