Martin Judy Books

Caddywampus

By Martin Judy, Erik Martin

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Red White and Blue Star Quilts

By Martin Judy

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Red White and Blue Star Quilts

By Martin Judy

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Encyclopedia of Printmaking Techniques

By Martin Judy

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Encyclopedia of Coloured Pencil Techniques, The

By Judy Martin

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An indispensable guide for anyone keen to learn coloured pencil techniques, or for the experienced artist who would like to build on their existing skills. Filled with information on the basic char...

Encyclopedia of Pastel Techniques, The

By Judy Martin

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UPDATED EDITION: Develop your own pastel painting style in this A-Z reference outlining a variety of techniques and materials—from soft pastels to oil pastels. Many pastel painting books take...

Handtinting photographs

By Martin Judy

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The encyclopedia of pastel techniques

By Martin Judy

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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.