Roger D. Thomas Books

Dreadnoughts In Camera: Building The Dreadnoughts 1905-1920

By Roger D. Thomas, Brian Patterson, England) Royal Naval Museum (Portsmouth

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The construction of British Super Dreadhough warships between 1905 and 1920 was a mammoth undertaking involving two Royal Naval dockyards and the largest armament manufacturers and naval shipbuildi...

Dreadnoughts

By Royal Naval Museum Great Britain Staff, Brian Patterson, Roger D. Thomas

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Maui 2013

By Roger D. Thomas

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Dreadnoughts in Camera

By Brian Patterson, Roger D. Thomas

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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.