Richard Cahan Books

Real Chicago Sports

By Richard Cahan, Michael Williams, Neal Samors

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Real Chicago Sports

By Richard Cahan, Michael Williams, Neal Samors

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The Lost Panoramas

By Williams Michael Cahan Richard

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Who We Were

By Williams Michael Cahan Richard Osborn Nicholas

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The Lost Panoramas

By Richard Cahan, Michael Williams

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Since her death in 2009, Vivian Maier has become a photographic phenomenon. Her story--thousands of photo negatives and prints found in a storage locker and sold for pennies at auction--has stirred...

River of Blood American Slavery from the People Who Lived It

By Dorothea Lange, Richard Cahan, Adam Green, Michael Williams

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Un American

By Richard Cahan

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In 1942 more than 109,000 Japanese Americans, including 70,000 U.S. citizens, were picked up and sent to incarceration centers, most for the duration of the war. It was the shame of America-- and i...

Chicago

By Richard Cahan, Michael Williams

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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.