Alan A. Siegel Books

Warren A to Z

By Alan A. Siegel

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Somerset County in Vintage Postcards NJ Postcard History Series

By Alan A. Siegel

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Warren Township

By Alan A. Siegel

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Irvington NJ

By Alan A. Siegel

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Smile

By Alan A. Siegel

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In Smile, Alan A. Siegel chronicles the evolution of Olympic Park from a den of hedonism and intoxication in the 1880s into Essex County's most popular family entertainment site in the 1950s and 19...

Beneath the starry flag

By Alan A. Siegel

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Smile

By Alan A. Siegel

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Case Citation Series

By Stephen B. Thomas

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Warren A to Z

By Alan A. Siegel

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Irvington Images of America Arcadia Publishing

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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.