Peter Marker Books

Bologneser Zeichnungen 1570 1730

By Hessisches Landesmuseum Darmstadt

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Arnold Bocklin, Zeichnungen

By Peter M Arker, Arnold Bocklin

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Ausgewahlt

By Hessisches Landesmuseum Darmstadt Germany . Graphische Sammlung.

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Johann Heinrich Schilbach 1798 1851

By Klaus D. Pohl, Peter Marker

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Die Hunde des Carl Philipp Fohr

By Peter Marker

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In den wenigen Schaffensjahren schuf Fohr ein stilistisch wie thematisch vielfältiges Werk. Inhaltlich widmete er sich vor allem der Landschaft, der Historie und Bildnissen seiner Studien- und Küns...

Carl Philipp Fohr 1795 1818

By Peter Marker

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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.