John C. Welchman Books

After the Wagnerian Bouillabaisse, Volume 2

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Critical analyses of some of the major European artists and movements in the twentieth century, delivered with verve and insight.The ten essays in After the Wagnerian Bouillabaisse offer original c...

Joseph Kosuth Redefining the Context of Art 1968 and after

By John C. Welchman, Gabriele Guercio

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On the Beyond

By John C. Welchman, Jim Shaw, Mike Kelley, Cristina Bechtler

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Hartung

By Annie Claustres, John C. Welchman, Rainer Michael Mason, Christopher Wool, Jennifer Mundy, Laurence Bertrand Dorleac, Franz W Kaiser, Chantal Eschenfelder, Christine Mehring

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Foul Perfection

By John C. Welchman, Mike Kelley

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Art after Appropriation

By John C. Welchman

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Art after Appropriation

By John C. Welchman

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Minor Histories

By John C. Welchman, Mike Kelley

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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.