David Hewson Books

Dante's Numbers: The Seventh Costa Novel

By David Hewson

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The Blue Demon

By David Hewson

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Nic suspects that a politician's murder is connected to a series of twenty-year-old ritualistic killings.

The death mask of the poet Dante is to be exhibited at the premiere of a controversial film, 'Inferno', based on his epic work. At the grand unveiling, this priceless artefact is replaced by a maca...

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.