Declan Kennedy Books

The Inner City

By Declan Kennedy, Margrit I. Kennedy

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Directory of Eco villages in Europe

By Barbro Grindheim, Declan Kennedy

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Science for the future

By Declan Kennedy

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Interest and inflation free money

By Margrit I. Kennedy

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Interest and Inflation Free Money offers a clear, simple explanation of how financial policies shape the global markets - and how interest wrecks cultures, ecosystems, and economic systems. In par...

Writing and using learning outcomes

By Declan Kennedy

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Interest and inflation free money

By Margrit I Kennedy

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Eolaiocht na linne seo

By Declan Kennedy

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Eolaiocht nalinne seo.

By Declan Kennedy

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Eolaiocht na linne seo.

By Declan Kennedy

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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.