Kellerman Jonathan Books

A Measure of Darkness

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Deputy coroner Clay Edison goes to extreme lengths for a forgotten Jane Doe in the new thriller from a father-son team of bestselling authors who write “brilliant, page-turning fiction” (Stephen Ki...

Golem of Paris

By Jonathan Kellerman, Jesse Kellerman

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Serpentine

By Jonathan Kellerman

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Serpentine

By Jonathan Kellerman

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NEW YORK TIMES BESTSELLER • Psychologist Alex Delaware and detective Milo Sturgis search for answers to a brutal, decades-old crime in this electrifying psychological thriller from the master of su...

Serpentine

By Jonathan Kellerman

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Measure of Darkness

By Jonathan Kellerman, Jesse Kellerman

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Bad Love Large Print

By Jonathan Kellerman

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City of the Dead

By Jonathan Kellerman

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Private Eyes

By Jonathan Kellerman

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Evidence An Alex Delaware Novel

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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.