Jonathan Stephen Harris Books

How to Draw Fun Stuff Stroke-by-Stroke

By Jonathon Stephen Harris, Jonathan Stephen Harris

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A fresh and exciting drawing guide for young artists who seek projects that are out of the ordinary.Are you tired of drawing the same boring stuff? Artist and author Jonathan Stephen Harris shows y...

Complete Book of Drawing Optical Illusions 3D Illustrations and Spiral Art

By Stefan Pabst, Jonathan Stephen Harris

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The art of drawing optical illusions

By Jonathan Stephen Harris

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From impossible shapes to three-dimensional sketches and trick art, you won't believe your eyes as you learn to draw optical illusions in graphite and colored pencil. Perfect for beginning artists,...

Art of Spiral Drawing

By Jonathan Stephen Harris

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EL ARTE DE DIBUJAR ILUSIONES OPTICAS

By VVAA

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Mandala Coloring Book

By Jonathan Harris

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How to Draw Fun Stuff Stroke-by-Stroke

By Jonathan Stephen Harris

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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.