Penni Russon Books

Undine

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Sixteen-year-old Undine, hearing her presumably deceased father calling to her and feeling a strange force growing inside her, travels to the sea to discover the depths of her magical powers.

Although Undine is excited about leaving Tasmania for a trip to see her father in Greece, she is also conflicted about using the magic that wells up inside her and confused about her personal relat...

Breathe

By Penni Russon

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Breathe Undine Book 2

By Penni Russon

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Undine

By Friedrich De La Motte Fouque

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Undine

By Melissa Eccleston, Penni Russon

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Undine

By Penni Russon

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Endsister

By Penni Russon

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Breathe

By Penni Russon

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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.