Glen Duncan Books

This is the story of Augustus Rose -- half African-American, half Italian; journalist, lover, restauranteur, unlikely terrorist -- and his interrogator, Harper, a Grand Inquisitor armed with twenty...

A day and a night and a day

By Glen Duncan

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The last werewolf

By Glen Duncan

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Jacob Marlowe has lost the will to live. For two hundred years he has wandered the world, enslaved by his lunatic appetites and tormented by the memory of his first and most monstrous crime. Now, t...

The last werewolf

By Glen Duncan

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A veil of melancholy has fallen over Jacob Marlowe. He's the last of his kind. Hunted by his enemies and haunted by his past, he is worn out by centuries of decadence and debauchery, and by the dem...

Talulla rising

By Glen Duncan

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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.