Simon Grennan Books

Dispossession

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"England, 1873. John Caldigate, a young gentleman, gets into debt gambling and decides to try his luck in the gold fields of New South Wales. On the outward journey, he promises to marry Mrs Smith,...

Dirt

By S. Grennan

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Energy

By Winston Grennan Simon Dennis John Sperandio Christopher

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Revenge and dish served cold

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Buried Treasures

By Simon Grennan Chris Sperandio

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The peasant and the devil

By Simon Grennan

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Anyone in New York

By Simon Grennan, Christopher Sperandio

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Revolution 98

By Foundation For Art And Creative Technology, Charles Esche

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The art below

By Simon Grennan

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Ghost on the stair

By Simon Grennan

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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.