Aidan Meehan Books

Celtic Design: A Beginner's Manual

By Aidan Meehan

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Celtic Design: Knotwork: The Secret Method of the Scribes

By Aidan Meehan

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Celtic Design: Animal Patterns

By Aidan Meehan

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Celtic Design: Spiral Patterns

By Aidan Meehan

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At the end of the eighth century, the Vikings began to plunder the Celtic monasteries, putting an end to the golden age of Celtic art in the Early Christian period. In spite of the invaders' love o...

Celtic Design: The Tree of Life

By Aidan Meehan

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Celtic Patterns Painting Book

By Aidan Meehan

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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.