Robert Ferguson Books

#1 New York Times bestselling author Jo Nesbo's story "The Jealousy Man" is now a major motion picture Killer Heat starring Joseph Gordon-Levitt, Shailene Woodley, and Richard Madden – from...

The Vikings

By Ferguson Robert

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Presents a history of the Nordic warriors and explorers who plundered and traded their way across Europe, and discusses how their conquests helped spread and enhance accomplishments in the arts, cu...

The short sharp life of T.E. Hulme

By Ferguson Robert

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The hammer and the cross

By Ferguson Robert

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The Knights Templar and Scotland

By Ferguson Robert

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"Places and books like Rosslyn Chapel and The Da Vinci Code have focused attention on Scotland's Knights Templar. Who they were and what they did has been touched upon, but never properly explored...

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.