Philip Langdon Books

Good House Hunting: 20 Steps to Your Dream Home

By Dennis Wedlick

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A Better Place to Live: Reshaping the American Suburb

By Philip Langdon

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This Old House Bathrooms: A Guide to Design and Renovation

By Thomas Steve

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This Old House Bathrooms: A Guide to Design and Renovation

By Philip Langdon, Steve Thomas Rooney

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Orange roofs, golden arches

By Philip Langdon

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An affectionate history of the architecture, design, and décor of American chain restaurants, from their beginnings in the 1870s (the early Harvey Houses at railroad stations on the Western frontie...

ORANGE ROOFS, GOLDEN ARCHES

By Philip Langdon

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Urban excellence

By Philip Langdon

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Orange roofs, golden arches

By Philip Langdon

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The good home

By Dennis Wedlick

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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.