George Sullivan Books

Baseball Backstage

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Profiles eleven individuals, from general manager to clubhouse attendant, who play key roles in the day-to-day activities of the New York Yankees baseball team.

Famous navy fighter planes

By George Sullivan

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French-English-English French Dictionary

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Yankees

By John Powers Undifferentiated, Sullivan George, George Sullivan

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In line Skating

By George Sullivan

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Wind power for your home

By George Sullivan

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Slow pitch softball

By George Sullivan

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Wood burning stoves

By George Sullivan

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Baseball rules illustrated

By George Sullivan

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Tennis rules illustrated

By George Sullivan

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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.