Sophie Hannah Books

The Monogram Murders The New Hercule Poirot Mystery

By Sophie Hannah

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Closed Casket: The New Hercule Poirot Mystery

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Closed casket

By Sophie Hannah

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"What I intend to say to you will come as a shock ..." With these words, Lady Athelinda Playford -- one of the world's most beloved children's authors -- springs a surprise on the lawyer entrusted...

The Mystery of Three Quarters

By Sophie Hannah

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The Mystery of Three Quarters

By Sophie Hannah

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Introductory Visual Basic

By P. K. McBride

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The Monogram Murders The New Hercule Poirot Mystery Hercule Poirot Mysteries

By Agatha Christie, Sophie Hannah

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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.