Ron Roy Books

The goose s gold A to Z mysteries
The invisible island
The invisible island

By Ron Roy

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The jaguar s jewel A to Z mysteries
The kidnapped king
The kidnapped king

By Ron Roy

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Dink and his friends meet an exchange student, Sammi, who is actually the prince of an island country, hiding from those enemies who have kidnapped his parents and who may be after him as well.

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The lucky lottery
The lucky lottery

By Ron Roy

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Dink and his two friends help Lucky find the culprit who stole Lucky's winning lottery ticket.

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A to Z Mysteries the School Skeleton
A to Z Mysteries the School Skeleton

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The Quicksand Question A to Z Mysteries
The runaway racehorse
The runaway racehorse

By Ron Roy

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Dink, Josh, and Ruth Rose investigate the disappearance of Whirlaway, their Uncle Warren's new racehorse, just before a race at Saratoga.

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The ninth nugget A to Z mysteries
The Orange Outlaw A to Z Mysteries
The Orange Outlaw A to Z Mysteries

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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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