Paul C. Nagel Books

Nagel probes deeply into the psyche of this cantankerous, misanthropic, erudite, hardworking son of a former president whose remarkable career spanned many offices: minister to Holland, Russia, and...

Missouri, a history

By Paul C. Nagel

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Missouri

By Paul C. Nagel

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George Caleb Bingham

By George Caleb Bingham, Paul C. Nagel

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John Quincy Adams

By Jeff Riggenbach, Paul C. Nagel

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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.