Julian Sedgwick Books

The wheel of life and death

By Julian Sedgwick

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The Black Dragon

By Julian Sedgwick

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Twelve-year-old Danny, who's half-Chinese and half-British, had an unusual childhood. His parents were the star performers in the Mysterium a radical traveling circus and they taught Danny plenty o...

The palace of memory

By Julian Sedgwick

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Danny Woo has just escaped from the jaws of death. But he's still haunted by the suspicious deaths of his parents, who were the star performers in a radical traveling circus, the Mysterium. When he...

Voyages in the Underworld of Orpheus Black

By Julian Sedgwick Julian, Alexis Deacon Alexis, Marcus Sedgwick Marcus

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Black Dragon

By Julian Sedgwick

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The Palace of Memory

By Julian Sedgwick

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Danny Woo has escaped from the jaws of death once - but his trials are not yet over. He's meant to be recovering, but when he discovers the Mysterium - the circus into which he was born, and which...

The Palace of Memory

By Julian Sedgwick

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Danny Woo has escaped from the jaws of death once - but his trials are not yet over. He's meant to be recovering, but when he discovers the Mysterium - the circus into which he was born, and which...

Ghosts of Shanghai 01

By Julian Sedgwick

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Ghosts of Shanghai 02

By Julian Sedgwick

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Return to the City of Ghosts

By Julian Sedgwick

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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.