M. C. Hargreaves Books

Mr Men Mischief

By M. C. Hargreaves

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Mr Quiet Mr. Men 29

By M. C. Hargreaves

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Mr. Quiet is afraid of loud noises. This is a big problem for him, since he lives in Loudland. But one day he gets a letter from Mr. Happy inviting him to Happyland, where he finds? What else?? Hap...

Mr Men Grumpy

By M. C. Hargreaves

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Mr Men Forgetful

By M. C. Hargreaves

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Mr Men Lazy

By M. C. Hargreaves

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Mr Men Fussy

By M. C. Hargreaves

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Mr Chatterbox Mr. Men 20

By M. C. Hargreaves

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Mr Chatterbox was one of those people who simply couldn't stop talking. He used to talk to anybody and everybody about anything and everything, going on and on and on. And on and on and on.

Mr Men Bounce

By M. C. Hargreaves

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Mr Men Silly

By M. C. Hargreaves

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Mr. Messy Mr. Men 8

By M. C. Hargreaves, Roger Hargreaves

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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.