Arpad Olbey Books

Crab Campaign

By Arpad Olbey, J. A. Watson

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Nocturnal Symphony

By Arpad Olbey, J. A. Watson

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Animal Kingdom Color by Numbers

By Martin Sanders

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Color by Numbers: Animal Kingdom

By Arpad Olbey, Martin Sanders

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Coloring by numbers isn't just for kids anymore.'With these intricate designs, even a novice artist can make dazzling works of art. This stunning collection of more than 60 color-by-number pictures...

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.