Tony Holmes Books

World Super Carriers

By Tony Holmes, Jean Pierre Montbazet

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Kadena

By Robbie Shaw, Tony Holmes

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J2M Raiden and N1K1 2 Shiden Shiden Kai aces

By Yasuho Izawa

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Air Combat

By Dmitriy Khazanov, Aleksander Medved, Tony Holmes, Edward M. Young

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Covering four air forces, three theaters, and ten iconic fighters, this book is the complete story of head to head aerial combat in World War II. Matching up ten aerial rivals - including Spitfires...

Supercarriers

By Tony Holmes

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Tomahawk and Kittyhawk Aces of the RAF and Commonwealth

By Andrew Thomas, Tony Holmes

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Aircraft of the Aces Legends of World War II

By Iain Wylie

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Spitfire

By Tony Holmes, John Dibbs

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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.