Stephen Halliday Books

Making the Metropolis

By STEPHEN HALLIDAY

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London Underground

By Stephen Halliday

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An Underground Guide to Sewers

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A global guide to sewers that celebrates the magnificently designed and engineered structures beneath the world's great cities.The sewer, in all its murkiness, filthiness, and subterranean seclusio...

Underground Guide to Sewers

By Stephen Halliday

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Amazing Extraordinary London Underground Facts

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Amazing And Extraordinary Facts About Great Britain

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Amazing Extraordinary Facts London

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Great Filth

By Stephen Halliday

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Great Filth

By Stephen Halliday

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Fictional London

By Stephen Halliday

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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.