Andy Griffiths Books

Zombie Bums from Uranus

By Andy Griffiths

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Just Annoying

By Andy Griffiths

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The cat, the rat, and the baseball bat

By Andy Griffiths

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"What happens when a cat meets a rat with a baseball bat?"--Jacket.

The 91-storey treehouse

By Andy Griffiths

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Join Andy and Terry in their now 91-storey spectacular treehouse. They've added 13 new levels, including the world's most powerful whirlpool, a mashed-potato-and-gravy train and a human pinball mac...

The Big Fat Cow That Goes Kapow

By Andy Griffiths

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Ed and Ted and Ted's dog Fred

By Andy Griffiths

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Ed, Ted's friend, does not get along well with Ted's dog, Fred, and when Fred bites Ed's head, trouble is spread.

Under the Twmp

By Andy Griffiths

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Under the Twmp

By Andy Griffiths

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Under the Twmp

By Andy Griffiths

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Under the Twmp

By Andy Griffiths

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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.