John Ryan Books

Rolling in the Aisles
Rolling in the Aisles

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Rare Birds Day by Day
Believe it or Not!
Believe it or Not!

By John Ryan

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Frisco & Fred and the space monster
Pugwash in the Pacific
Pugwash in the Pacific

By Ryan John

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Pirate Pugwash escapes the British Naval Squadron and takes care of his rival, Cut-Throat Jake, at the same time.

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A bash in the tunnel
A bash in the tunnel

By Ryan John

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A wave of the sea
A wave of the sea

By Ryan John

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The international dimension of the American Society of Agronomy
Jona Ym Mol Y Morfil
Jona Ym Mol Y Morfil

By John Ryan

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Remembering How We Stood

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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.

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