Hal Duncan Books

A Z of the Fantastic City

By Eric Schaller, Hal Duncan

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Cryptid: Urban Legends

By Hal Duncan, Ruth Veevers

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There's something hiding among us: an illusive cryptid is prowling our city streets. The evidence is clear but, without definitive proof, the scientific community will never believe you. There's no...

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.

Hal Duncan Books

Vellum

Vellum

A Scruffian Survival Guide

Scruffian Primer

Fabbles

Errata

A Z of the Fantastic City

Land of Somewhere Safe

Evades de L Enfer

Cryptid: Urban Legends

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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