Ralph Gleis Books

Kampf Um Sichtbarkeit

By Ralph Gleis, Yvette Deseyve, Birgit Verwiebe, Nuria Jetter

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Fighting for Visibility

By Ralph Gleis, Yvette Deseyve, Birgit Verwiebe, Nuria Jetter

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Secessions

By Ralph Gleis, R. Gleis, A. Matelowski, K. Althaus, Ursula Storch

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Caspar David Friedrich

By Ralph Gleis

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250 years after the painter’s birth, this luxurious exhibition catalog offers glimpses into the mystery of Friedrich’s largely posthumous popularity as well as the latest research into...

Wally Neuzil

By Ralph Gleis, Birgit Summerauer, Diethard Leopold, Stephan Pumberger, Wally Neuzil

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Wally Neuzil war in Egon Schieles frühen, wichtigen Schaffensjahren für vier Jahre seine Geliebte und Gefährtin. Zugleich war sie für eine Vielzahl von Zeichnungen und Aquarellen sein Modell. Offen...

Monet and the Impressionist Cityscape

By Ralph Gleis, Josephine Hein

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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.