William Earl Parrish Books

The Civil War: a second American revolution?

By William Earl Parrish

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The Civil War

By William Earl Parrish

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Missouri

By William E. Parrish, William Earl Parrish

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Frank Blair

By William Earl Parrish

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Known for his fearlessness in both the political arena and the battlefield, Frank Blair is a Missouri legend. As a member of one of the most prominent and powerful political families in America dur...

Missouri, the heart of the nation

By William Earl Parrish

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Missouri, the heart of the nation

By William Earl Parrish

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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.