Diane Duane Books

SeaQuest DSV

By Rockne S. O Bannon, Tommy Thompson, Diane Duane

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SeaQuest is the largest, fastest and most powerful submarine ever built. She is also the planet's ultimate peace keeper: Multinational confederations are on the brink of global war.

Seaquest Dsv novel27f

By P. Morewood, Diane Duane

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A murder reveals a deadly plot against Elves, particurally the highest members of the Alfheim government, and Lee Enfiled, and her fayhound partner Gelert must infiltrate Alfheim to discover the tr...

The Book of Night with Moon

By Diane Duane

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To Visit the Queen

By Diane Duane

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Star Trek

By Diane Duane

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Games Wizards Play Young Wizards Series

By Diane Duane

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Games wizards play

By Diane Duane

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In the exciting tenth installment in the Young Wizards series, Nita and Kit take part in a planetwide wizardry competition.

The Door into Fire

By Diane Duane

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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.