Roger Morris Books

Summon up the blood

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London, 1914, - a killer is at liberty in the dark alleys of the city. The cadavers of his victims all have one thing in common: there is no blood in their bodies. As the killer's reign of terror c...

The mannequin house

By Roger Morris

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London, 1914. Called out to investigate the murder of a fashion model employed by the House of Blackley, a prestigious Kensington department store, Detective Inspector Silas Quinn of Scotland Yard'...

Summon up the blood

By Roger Morris

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First in a brand-new historical mystery series featuring decidedly unconventional turn of the century sleuth, Detective Inspector Silas Quinn. London, 1914. A killer is at liberty in the dark alley...

The red hand of fury

By Roger Morris

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A series of bizarre suicides leads Detective Inspector Silas Quinn to revisit his own troubled past ... June, 1914. A young man is mauled to death by a polar bear at London Zoo. Shortly afterwards,...

Pacific sail

By Morris Roger

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Atlantic Sail

By Roger Morris, Morris Roger

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Atlantic sail

By Morris Roger

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Chief Executive in Local Government

By Roger Morris, Roger Paine

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The mannequin and the monkey

By R. N. Morris

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Verkaufte Seelen

By Roger Morris

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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.