Freda Warrington Books

The Amber Citadel 27 Copy Bin

By Freda Warrington

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Dracula the undead

By Freda Warrington

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It is seven years since a stake was driven through the heart of the infamous Count Dracula. Seven years which have not eradicated the terrible memories for Jonathan and Mina Harker, who now have a...

Guiltless Blood

By Freda Warrington

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The Court of the Midnight King

By Freda Warrington

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Obsidian Tower The Shadowfire

By Freda Warrington

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Midsummer night

By Freda Warrington

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A young woman studying art at a vast country estate near the site where a child was snatched by fairies decades earlier, stumbles onto the portal to the Otherworld through which a handsome, charmin...

Elfland

By Freda Warrington

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Midsummer Night

By Freda Warrington

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F20 Issue 2

By Suzanne J. Barbieri, David J. Howe, Storm Constantine, Freda Warrington, Justina Robson, Jane Welch, Louise Cooper, Juliet E. McKenna, M.P.N. Sims, L.H. Maynard

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Myth understandings

By Kari Sperring, Freda Warrington, Tricia Sullivan, Deborah J. Miller, Storm Constantine, Leigh Kennedy, Pat Cadigan, Liz Williams, Sarah Pinborough, Gwyneth Jones

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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.