Ernst Hofer Books

Ein Ort erinnert sich--

By Hofer Ernst

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Hans Christian Andersen's The Snow Queen

By Ernst Hofer, Ken Setterington Illustrated By Nelly

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Gerda and Kay are the best of friends. They live across an alley from each other and happily chat, play, and tend their lovely rose garden. The children are happy until tragedy strikes Kay. His eye...

The Wild Swans

By Ken Setterington

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Das Ende des Dreissigjahrigen Krieges

By Ernst Hofer

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Vertrage uber unmittelbare Versorgungszusagen

By Ernst Hofer

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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.