Kellerman Jonathan Books

Serpentine

By Jonathan Kellerman

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Lost Souls

By Jonathan Kellerman

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Rage

By Jonathan Kellerman

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"Eight years ago, psychologist Alex Delaware evaluated two teenage boys charged with the shocking murder of young Kristal Malley. Now one of the killers is out of prison - and wants to meet up with...

Comedies en tout genre

By Jonathan Kellerman

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Exit

By Jonathan Kellerman

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Satans Bruder

By Jonathan Kellerman

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Narben Alex Delaware 9

By N A

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Todesschmerz German Edition

By Jonathan Kellerman

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Mal Amor Alex Delaware 7

By Jonathan Kellerman

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Desaparecido

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El doctor Alex Delaware recibe una llamada para evaluar a una aspirante a actriz que es acusada, junto con su novio, de escenificar su propio secuestro, y se olvida del caso cuando la investigación...

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.