Danielle Trussoni Books

Angelology

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A thrilling epic about an ancient clash reignited in our time--between a hidden society and heaven's darkest creaturesThere were giants in the earth in those days; and also after that, when the son...

Angelopolis

By Danielle Trussoni

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"A stunning follow-up to the best-seller Angelology. . . Part historical novel, fantasy, love story, thriller, and mystery. . . It's a must-read."—Booklist (starred review) A New York Times bestsel...

Angelology

By Danielle Trussoni

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Angelopolis

By Danielle Trussoni

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Puzzle Master

By Danielle Trussoni

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The Puzzle Master

By Danielle Trussoni

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Reality and the supernatural collide when an expert puzzle maker is thrust into an ancient mystery—one with explosive consequences for the fate of humanity—in this suspenseful thriller...

The Puzzle Box

By Danielle Trussoni

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NATIONAL BESTSELLER • “A fun, DaVinci Code–style blend of puzzles, mysticism and high-octane action” (People, Best Books of the Month), from the author of The Puzzle Mas...

The Puzzle Master

By Danielle Trussoni

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Reality and the supernatural collide when an expert puzzle maker is thrust into an ancient mystery—one with explosive consequences for the fate of humanity—in this suspenseful thriller...

Angelology

By Danielle Trussoni

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The Ancestor

By Danielle Trussoni, Heather Masters

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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.