Nicholas Rhea Books

While seeking the legendary Holy Trough of Blackamoor, D I Montague Pluke comes across a corpse; the dead man, Pluke discovers, has been shot. It is soon established that the victim was a suspect i...

Murder under the midnight sun

By Nicholas Rhea

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"When DS Mark Pemberton embarks on a cruise to the Arctic Circle he's very much off duty. He simply wants to experience the spectacle of the Midnight Sun and the splendour of the glaciers and fjord...

Constable Goes to Market

By Nicholas Rhea, Christopher Kay

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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.