Patrick John Books

John Patrick's Internet gambling

By Patrick John

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The curious savage

By Patrick John

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Mrs. Savage has been left ten million dollars by her husband and wants to make the best use of it, in spite of the efforts of her grown-up stepchildren to get their hands on it. These latter, knowi...

Great garden, no sweat!

By Patrick John

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I Am Potential

By Read By To Be Announced, Patrick John, Hughes, Bryant, Stamford

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Deadly minuet

By Patrick John

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The best of the superstars

By Patrick John

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The best of the superstars

By Patrick John

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Legends

By Patrick John

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Country boys city boys

By Patrick John

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Huge

By Patrick John

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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.