Howard B. Rock Books

Cityscapes

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"Neither a conventional history of the city nor simply a collection of illustrations and photographs, this work weaves together diverse historical works - from political and economic analyses to et...

Cityscapes

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The New York City artisan 1789-1825

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The New York City Artisan 1789 1825

By Howard B. Rock

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American Artisans

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American Artisans

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Artisans of the New Republic

By Howard B. Rock

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OPEC

By Howard B. Rock, Dankwart A. Rustow, John F. Mugno

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Jewish New York

By Deborah Dash Moore

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Haven of Liberty

By Howard B. Rock

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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.