George Mann Books

Ghosts of Karnak

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A woman is found dead on the streets of New York, ancient Egyptian symbols carved into her flesh. A ghostly figure is seen floating over the rooftops of the city. And an expedition returns from Cai...

Ghosts of Empire

By George Mann

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In the aftermath of the events seen in Ghosts of Karnak, and with the political climate somewhat eased, Gabriel takes Ginny to London by airship to recuperate. But he isn’t counting on c...

Further Associates of Sherlock Holmes

By George Mann

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Once again, famous associates of the Great Detective – clients, colleagues and, of course, villains – tell their own stories in this collection of brand-new adventures. Meet Lucy Hebron...

Sherlock Holmes: The Will of the Dead

By George Mann

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A gripping addition to the tales of Sherlock Holmes from the acclaimed author of the Newbury & Hobbes seriesA young man named Peter Maugram appears at the front door of Sherlock Holmes and Dr. Wats...

Sherlock Holmes: The Spirit Box

By George Mann

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Summer, 1915. As Zeppelins rain death upon the rooftops of London, eminent members of society begin to behave erratically: a Member of Parliament throws himself naked into the Thames after giving a...

Encounters of Sherlock Holmes

By George Mann

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Modern masters of steampunk and horror offer their own spin on the Sherlock Holmes mythos in a series of stories that are “a thunderously good time” (Criminal Element) A brand-new...

Further Encounters of Sherlock Holmes

By George Mann

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A brand-new collection of Sherlock Holmes stories from a variety of exciting voices in modern horror and steampunk, edited by respected anthologist George Mann.

The Casebook of Newbury & Hobbes

By George Mann

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A collection of short stories detailing the supernatural steampunk adventures of detective duo, Sir Maurice Newbury and Miss Veronica Hobbes. Along with Chief Inspector Bainbridge, Newbury and Hobb...

Star Wars: The High Republic: Quest for the Hidden City

By George Mann

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The New York Times best-selling series continues.... For light and life! A fun and action-packed middle grade adventure set in the world of the High Republic, 150 years before the storytelling of P...

Star Wars: The High Republic: Tears of the Nameless

By George Mann

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The New York Times best-selling series continues in this heart-wrenching sequel to Defy the Storm where fans will reunite with fan-favorite Jedi Knight Reath Silas.Written by the author of The High...

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.