Philip Langdon Books

A Better Place to Live

By Philip Langdon

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Within walking distance

By Philip Langdon

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"In Within Walking Distance, journalist and urban critic Philip Langdon looks at why and how Americans are shifting toward a more human-scale way of building and living. He shows how people are cre...

The Good Home: Interiors and Exteriors

By Philip Langdon, Dennis Wedlick

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Good House Hunting

By Philip Langdon, Dennis Wedlick

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Italian American Experience in New Haven

By Philip Langdon, Anthony V. Riccio, Mary Ann McDonald Carolan

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American Houses

By Philip Langdon

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Within Walking Distance

By Philip Langdon

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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.