Christopher Ruocchio Books

Lesser Devil

By Christopher Ruocchio

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Empire of Silence

By Christopher Ruocchio

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"Empire of Silence is epic science fiction at its most genuinely epic.  Ruocchio has made something fascinating here, and I can't wait to see what he does next." —James S.A. Corey, New Y...

Disquiet Gods

By Christopher Ruocchio

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The sixth and penultimate novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy, as Hadrian Marlowe continues down a path that can only end in fireAmbitious...

This Sun Eater Series 5 Books Set

By Christopher Ruocchio

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Howling Dark

By Christopher Ruocchio

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Now in paperback, the second novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy, as Hadrian Marlowe continues down a path that can only end in fire.Hadria...

Demon in White

By Christopher Ruocchio

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The third novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy.For almost a hundred years, Hadrian Marlowe has served the Empire in its war against the Ciel...

Kingdoms of Death

By Christopher Ruocchio

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The fourth novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy, as Hadrian Marlowe continues down a path that can only end in fire.Hadrian Marlowe is trapp...

Ashes of Man

By Christopher Ruocchio

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The fifth novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy, as Hadrian Marlowe continues down a path that can only end in fire.The galaxy is burning.&nb...

Disquiet Gods

By Christopher Ruocchio

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The sixth and penultimate novel of the galaxy-spanning Sun Eater series merges the best of space opera and epic fantasy, as Hadrian Marlowe continues down a path that can only end in fireAmbitious...

Shadows Upon Time

By Christopher Ruocchio

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The seventh and final novel of the galaxy-spanning series merges the best of space opera and epic fantasy, as Hadrian Marlowe at last lights the greatest fire humanity has ever seenAmbitious univer...

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.