John C. Welchman Books

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By Mike Davis, Brian Butler, Connie Butler, Dennis Cooper, Dave Muller, Frances Stark, Diana Thater

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Minor Histories: Statements, Conversations, Proposals

By Kelley Mike, Mike Kelley

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The second volume of writings by Los Angeles artist Mike Kelley, focusing on his own work.What John C. Welchman calls the "blazing network of focused conflations" from which Mike Kelley's styles ar...

Invisible Colors: A Visual History of Titles

By John C. Welchman

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Rethinking Borders

By John C. Welchman

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Mike Kelley

By John C. Welchman, James Nachtwey

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Techniques of the Modern Artists

By Judith Collins

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Rethinking borders

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Rethinking borders

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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.