Geoffrey Simmins Books

Fred Cumberland--building the Victorian dream

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In the first comprehensive study of Frederic William Cumberland (1820-1881), Geoffrey Simmins traces Cumberland's career as architect, railway manager, and politician, providing a richly detailed h...

Bibliography of Canadian architecture

By Geoffrey Simmins

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Documents in Canadian Architecture

By Geoffrey Simmins

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Edmund Morris Kyaiyii , 1871-1913

By Geoffrey Simmins

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Arthur Erickson

By Linda Fraser, Geoffrey Simmins, Michelangelo Sabatino

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Ontario Association of Architects

By Geoffrey Simmins

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Twelve Modern Houses 1945 1985

By Michael McMordie, Graham Livesey, Geoffrey Simmins

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Twelve Modern Houses 1945 1985

By Michael McMordie, Geoffrey Simmins, Graham Livesey

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John C. Parkin Archives and Photography

By Linda Fraser, Michael McMordie, Geoffrey Simmins

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Fred Cumberland

By Geoffrey Simmins

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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.