Rob Ryan Books

Entrepreneur America

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Fierce rivals, Englishman William Grover-Williams and Frenchman Robert Benoist, race their elegant Bugattis on the European race circuits. Not only is the World Championship in their sights, but th...

Trans Am

By Rob Ryan

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Nine Mil

By Rob Ryan

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Stay Healthy Abroad

By Michael Corr, Rob Ryan

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Early one morning

By Rob Ryan

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Dying day

By Rob Ryan

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Empire of sand

By Rob Ryan

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1915. While the war in Europe escalates, a young intelligence officer named Thomas Edward Lawrence is in Cairo, awaiting his chance for action. A man of immense energy, he runs a network of agents...

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.

Rob Ryan Books

Entrepreneur America

This Is For You

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Early one morning

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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