Tony Crilly Books

Arthur Cayley

By Tony Crilly, A. J. Crilly

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100 most important science ideas

By Mark Henderson

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100 most important science ideas

By Mark Henderson

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How big is infinity

By A. J. Crilly

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What are the strangest numbers? Where do numbers come from? Can maths guarantee riches? Why are three dimensions not enough? Can a butterfly's wings really cause a hurricane? Can maths predict the...

50 Mathematical Ideas You Really Need to Know

By Tony Crilly

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50 Schlusselideen Mathematik

By Tony Crilly, Thomas Filk

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Die grossen Fragen Mathematik

By Tony Crilly, Roland Girgensohn

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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.