Douglas Preston Books

FBI agent Pendergast and archaeologist Nora Kelly join forces to stop a vicious murderer when the discovery of the remains of thirty-six victims of a nineteenth-century killer apparently sets off a...

The Book of the Dead

By Lincoln Child Douglas Preston

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Cemetery Dance

By Tony Ross

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The royal road

By Christine Preston

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The husband-and-wife author-and-photographer team of Douglas and Christine Preston, seasoned travelers on the Camino Real, invite us to join them as they journey by car and horseback and on foot al...

Two Graves

By Lincoln Child 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.