William D. Griffin Books

The Irish Americans

By William D. Griffin

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A portrait of the Irish in America

By William D. Griffin

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Irish American History and Culture

By William D. Griffin

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The Irish Americans

By William D. Griffin

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Lavishly illustrated with paintings and vintage photographs, this coffee-table book tells the story of the seven million Irish who immigrated to America and their more than 40 million living descen...

The Irish American Almanac

By William D. Griffin

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The Irish in America, 550-1972: A Chronology and Fact Book

By William D. Griffin

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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.