Hilary Ballon Books

The Paris of Henry IV: Architecture and Urbanism

By Hilary Ballon

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The Paris of Henry IV: Architecture and Urbanism

By Hilary Ballon

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New York s Pennsylvania Stations

By Hilary Ballon, Marilyn Taylor

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"Pennsylvania Station was one of America's greatest engineering feats and finest works of architecture, but it was more than that. It set a standard of urban civility by transforming a transportati...

Robert Moses and the modern city

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Louis Le Vau

By Hilary Ballon

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Prairie Skyscraper

By Monica Montagut, Richard Townsend

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The greatest grid

By Hilary Ballon

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Frank Lloyd Wright s Towers

By Hilary Ballon

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Robert Moses and the modern city

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The cosmopolitan idea

By Hilary Ballon

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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.