Nick Holder Books

The London Guildhall

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The Friaries Of Medieval London: From Foundation To Dissolution

By Nick Holder

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The Friaries Of Medieval London: From Foundation To Dissolution

By Nick Holder

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The Friaries Of Medieval London Formed An Important Part Of The City's Physical And Spiritual Landscape Between The Thirteenth And Sixteenth Centuries. These Urban Monasteries Housed 300 Or More Pr...

The Friaries Of Medieval London

By Nick Holder

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with contributions from Ian M. Betts, Jens Röhrkasten, Mark Samuel, and Christian Steer. Nominated for the Current Archaeology Book of the Year Award 2019 The friaries of medieval London formed an...

The Royal Ordnance Factory At Hayes The Story Of A World War Ii Gun And Tank Factory At Hayes In The London Borough Of Hillingdon

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Medieval Priory and Hospital of St Mary Spital and the Bishopsgate Suburb

By Nick Holder, Chiz Harward, Christopher Phillpotts, Christopher Thomas

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Tintagel Castle

By Jen Cryer, Nick Holder, English Heritage Staff, Colleen E. Batey, Curatorial Department Staff English Heritage

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Gloucester Blackfriars

By Nick Holder, English Heritage Staff

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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.