Douglas Preston Books

The codex

By Douglas Preston

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Tyrannosaur Canyon

By Douglas Preston

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Jennie

By Douglas Preston

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The Codex

By Douglas Preston

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Impact

By Douglas Preston

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When a brilliant meteor lights up the Maine coast, and NASA images reveal an unnatural feature hidden in the depths of a crater on Mars, it's just the start of the adventure for a former CIA operat...

The Kraken Project

By Douglas Preston

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"NASA's Goddard Space Flight Center is designing a probe which will be dropped into the Kraken Mare, one of the methane seas of Titan. There, it will embark on a journey of exploration. As the prob...

Blasphemy

By Douglas Preston

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Impact

By Douglas Preston

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Wyman Ford is tapped for a secret expedition to Cambodia to locate the source of strange beautiful gemstones that do not appear to be of this world. A brilliant meteor lights up the Maine coast and...

The codex

By Douglas Preston

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Tyrannosaur canyon

By Douglas Preston

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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.