Katherine Harbour Books

Thorn Jack

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"In the wake of her older sister's suicide, Finn Sullivan and her father move to a quaint town in upstate New York. Populated with socialites, hippies, and dramatic artists, every corner of this ne...

Thorn Jack: A Night and Nothing Novel

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Briar Queen

By Katherine Harbour

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Nettle king

By Katherine Harbour

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The mesmerizing conclusion to the Night and Nothing series--part Buffy the Vampire Slayer and part Alice in Wonderland--finds Finn fighting against the land of the dead. When her beloved Jack disap...

Bones and Heart: A Night and Nothing Short Tale

By Katherine Harbour

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Briar Queen

By Katherine Harbour

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Briar Queen

By Katherine Harbour

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Nettle King

By Katherine Harbour, Kate Rudd

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Thorn Jack

By Katherine Harbour

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Thorn Jack

By Katherine Harbour

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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.