Johannes Volker Schmidt Books

Fluchtpunkt Italien

By Ralf Olivier Schwarz, Ackermann Peter, Johannes Volker Schmidt

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Hans Rott

By Johannes Volker Schmidt

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Hugo Staehle

By Johannes Volker Schmidt

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Der 1826 in Fulda geborene und bereits 1848 ? noch nicht einmal 22-jährig ? in Kassel verstorbene Komponist Hugo Staehle galt seinen Zeitgenossen als ausserordentlich vielversprechendes kompositori...

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.