Geoff Havel Books

There are facts about life that we all know, like weekends always start ten minutes after the bell rings on Friday because your teacher keeps you in, weekends go fast and the school week goes slow,...

Babies Bite

By Geoff Havel

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Top of the Taj Mahal Not Ethan Again Aunty Cake Astron Plughole Looga and Barooga Level 7

By Sally Prue, Geoff Havel, Narinder Dhami, Shane McGowan, Anais Goldemberg

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Plughole Level 7

By Nikki Gamble, Geoff Havel, Shane McGowan

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Plughole Level 7

By Geoff Havel

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Graves of the Roti Men

By Geoff Havel

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Dropping In

By Geoff Havel

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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.