Douglas Preston Books

Blue Labyrinth

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"A long-buried family secret resurfaces when one of Aloysius Pendergast's most implacable enemies shows up on his doorstep as a murdered corpse. The mystery has all the hallmarks of the perfect mur...

Two graves

By Douglas Preston

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Special Agent Pendergast assists NYPD Lieutenant D'Agosta in the investigation of a number of killings that ultimately prove to be messages from his wife's kidnappers.

Blue Labyrinth

By Douglas Preston

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Lost Tomb

By Douglas Preston, David Grann

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Angel of Vengeance

By Douglas Preston, Lincoln Child

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Angel of Vengeance

By Douglas Preston, Lincoln Child

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Dead Mountain

By Douglas Preston, Lincoln Child

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Angel of Vengeance

By Douglas Preston, Lincoln Child

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Dr. Leng Trilogy

By Douglas Preston, Lincoln Child

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Cabinet of Dr. Leng

By Douglas Preston, Lincoln Child

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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.