John Gatehouse Books

The Ghost of Happy Tail Wood Cheeky Mouse Cool Cat

By John Gatehouse

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Demons and elementals

By John Gatehouse

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Provides useful information and tips for monster hunters, including the origins, appearance, strengths, weaknesses, and special powers of all the known demons and spirits in the world.

The undead and water beasts

By John Gatehouse

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Provides useful information and tips for monster hunters, including the origins, appearance, strengths, weaknesses, and special powers of all the known monsters in the world.

Man monsters and animal horrors

By John Gatehouse

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The monster hunting continues is the third installment of Monster Hunters Unlimited. This series of tongue-in-cheek handbooks instruct readers on the not-so-deadly art of monster hunting. Complete...

Shelltown

By John Gatehouse Bernard Sparkes Patricia Parsons Sparkes

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The A Z of British Animation

By John Gatehouse, Geoff Wilmetts

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Flying fiends and gruesome creatures

By John Gatehouse

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"The monster hunting continues in the fourth installment of Monster Hunters Unlimited. This series of tongue-in-cheek handbooks instruct readers on the not-so-deadly art of monster hunting. Complet...

Freaky Frank Goes on Holiday

By John Gatehouse

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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.