Jonathan Kellerman Books

Therapy

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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...

Therapy

By Jonathan Kellerman

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Twisted

By Jonathan Kellerman

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Twisted

By Jonathan Kellerman

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Double Homicide

By Jonathon Kellerman, Faye Kellerman

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Capital Crimes

By Jonathan Faye Kellerman

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Capital Crimes

By FayeM Kellerm

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Evidence

By Jonathan Kellerman

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Deception

By Jonathan Kellerman

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The stakes are high and the players drawn from the highest echelons of LA society, this will be one of Alex Delaware's and Milo Sturgis' most perilous journeys. A dark and twisted tour of unthinkab...

Deception

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.