Diane Duane Books

The Door into Fire: Tale of the Five Volume 1

By Diane Duane

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So You Want to be a Wizard

By Diane Duane

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Thirteen-year-old Nita, tormented by a gang of bullies because she won't fight back, finds the help she needs in a library book on wizardry which guides her into another dimension.

Deep wizardry

By Diane Duane

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During a summer vacation at the beach, thirteen-year-old wizard Nita and her friend Kit assist the whale-wizard S'reee in combating an evil power.

High Wizardry

By Diane Duane

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When her younger sister uses the family computer with its special wizard software to travel to worlds light years away, Nita uses her wizardry to try to find her.

The Wizard's Dilemma: The Fifth Book in the Young Wizards Series

By Diane Duane

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Teenage wizard Nita travels to other universes to find a cure for her mother who has brain cancer.

A Wizard Alone: The Sixth Book in the Young Wizards Series

By Diane Duane

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While Nita mourns her mother's death, teenage wizard Kit and his dog Ponch set out to find a young autistic boy who vanished in the middle of his Ordeal, pursued by the Lone Power.

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.