Norman Firth Books

When Mornia Garish's body was found dead, she became the fifth such victim in two years. The police believed the crimes were the work of a maniac. Then another sinister pattern emerged: they had al...

Find the lady

By Norman Firth

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When gangster Mike Spagliotti is found shot through the head inside his locked New York hotel suite, it is a perplexing problem for Detective-Inspector Flannel. And when newspaper reporter Anita Cu...

Blood on the dragon

By Norman Firth

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Terror strikes

By Norman Firth

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To Chief Inspector Sharkey, the first murder is baffling enough: on a nightclub dance floor, a man suddenly begins to choke. Horrified onlookers watch as he collapses and dies. It is quickly establ...

Murder at St. Mark s

By Norman Firth

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Dr. Wignall, Headmaster of the venerable public school of St. Mark's, is fiercely proud of the institution. But this pride has been considerably shaken by the murder of a teacher's daughter in the...

Nemesis

By Norman Firth

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Sons of the sphinx

By Norman Firth

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'We have read of your intended expedition to Egypt, to the Pyramid of Khufu ... Only death can be your lot if you embark upon this journey. The Sons of the Sphinx.' So reads the sinister message in...

Terror Stalks By Night

By Norman Firth

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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.