George E. Thomas Books

Frank Furness

By George E. Thomas

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Building America's first university

By George E. Thomas

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"Building America's First University traces the University from its earliest site, chosen by Benjamin Franklin, to the present day. Architectural historians George E. Thomas and David B. Brownlee f...

Cape May, queen of the seaside resorts

By George E. Thomas

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First Modern

By George E. Thomas

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Cape May Queen of the Seaside Resorts

By George E. Thomas, Carl E. Doebley, Chris Zelov

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William L. Price Arts and Crafts to Modern Design

By George E. Thomas, Robert Venturi

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"Architect George Howe believed there were three pioneers of American architecture. Louis Sullivan, Frank Lloyd Wright, and William L. Price. While Wright and Sullivan are still regarded as central...

University of Pennsylvania

By George E. Thomas

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"The University of Pennsylvania, established in 1779, is one of the first secular private schools in the nation. Since it was founded, it has occupied three different campuses. The third campus, be...

Frank Furness

By George E. Thomas, Michael J. Lewis, Jeffrey A. Cohen

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Frank Furness was the most unique and prolific American architect of the nineteenth century. Apprenticed in the atelier of Richard Morris Hunt and inspired by the values of his father's friend, Ral...

A Shade of Light

By George E. Thomas

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Frank Furness

By George E. Thomas

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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.