Sarah Howgate Books

The Portrait Now

By Sandy Nairne, Sarah Howgate

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David Hockney Portraits

By Barbara Stern Shapiro, Sarah Howgate

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Lucian Freud's sketchbooks

By Sarah Howgate, Martin Gayford, Lucian Freud

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Presented here is a selection of previously unpublished images from Freud's sketchbooks, now in the collection of the National Portrait Gallery, London.

David Hockney Portraits Npg Only

By Barbara Stern Shapiro, Sarah Howgate

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21st century portraits

By Sandy Nairne, Sarah Howgate, Andrew Graham Dixon, Jo Fredell Higgins

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Alex Katz portraits

By Sandy Nairne, Barry Schwabsky, Sarah Howgate

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Alex Katz (b.1927) is one of the most prominent artists of his generation. Often described as a 'painter's painter', his influence is widely felt with many of today's most successful painters from...

David Hockney A Bigger Exhibition

By Lawrence Weschler, David Hockney, Sarah Howgate, Richard Benefield

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David Hockney

By Lawrence Weschler, David Hockney, Sarah Howgate, Richard Benefield

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Lucian Freud

By Martin Gayford, Sarah Howgate

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Gillian Wearing and Claude Cahun

By Dawn Ades, Sarah Howgate

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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.