Rupert Holmes Books

Swing

By Rupert Holmes

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Murder Your Employer

By Rupert Holmes

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The musician s daughter

By Rupert Holmes

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"1940, San Francisco. Jazz saxophonist Ray Sherwood has arrived in town on tour with the Jack Donovan Orchestra and plenty of bad memories. But when he meets two beautiful women on the same day, Ra...

Musician s Daughter

By Rupert Holmes

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Swing

By Rupert Holmes

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Where the Truth Lies

By Rupert Holmes

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Murder Your Employer

By Rupert Holmes

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Murder Your Employer

By Rupert Holmes

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Murder Your Employer

By Rupert Holmes

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Swing

By Rupert Holmes

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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.