Jonathan Kellerman Books

Double homicide

By Jonathan Kellerman

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Twisted

By Jonathan Kellerman

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A year after the Cold Heart murders and Detective Petra Connor is working Hollywood Homicide solo. She's struggling with a drive-past murder when Isaac Gomez, assigned to Petra's care, suggests tha...

Therapy

By Jonathan Kellerman

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The brutal killings of a young couple--the troubled Gavin Quick and an unidentified female victim impaled by a metal spike--draws LAPD Detective Milo Sturgis and psychologist Alex Delaware into a s...

The Wedding Guest

By Jonathan Kellerman

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Half Moon Bay

By Jonathan Kellerman, Jesse Kellerman, Dennis Boutsikaris

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La sourde

By Jonathan Kellerman

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Heartbreak Hotel

By Jonathan Kellerman

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Billy straight

By Jonathan Kellerman

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Chair et sang

By Jonathan Kellerman

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La clinique

By Jonathan Kellerman

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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.