Philip Ollerenshaw Books

The European Linen Industry in Historical Perspective

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Banking in nineteenth-century Ireland

By Philip Ollerenshaw

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Banking in 19th Century Ireland

By Philip Ollerenshaw

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Take That in Private

By Alex Kadis, Philip Ollerenshaw

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Ulster Since 1600: Politics, Economy, and Society

By Liam Kennedy, Philip Ollerenshaw

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"Ulster Since 1600 surveys the history of the province from plantation to partition, and onwards from the formation of the Northern Ireland state to the 'Troubles' of recent decades. It synthesises...

Ulster Since 1600

By Liam Kennedy, Philip Ollerenshaw

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Northern Ireland in the Second World War

By Philip Ollerenshaw

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Ulster since 1600

By Liam Kennedy, Philip Ollerenshaw

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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.