Jonathan Kellerman Books

Flesh and Blood

By Jonathan Kellerman

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Guilt: An Alex Delaware Novel

By Jonathan Kellerman

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Killer: An Alex Delaware Novel

By Jonathan Kellerman

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Deception Kellerman (Premium MM) 18-Copy Floor Display with Riser

By Jonathan Kellerman

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15-copy Kellerman backlist prepack for Supervalu stores

By Jonathan Kellerman

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When the Bough Breaks

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In the first Alex Delaware novel, Dr. Morton Handler practiced a strange brand of psychiatry. Among his specialties were fraud, extortion, and sexual manipulation. Handler paid for his sins when...

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It is a case unlike any psychologist Dr. Alex Delaware has ever encountered. Five-year-old Woody Swope is ill, but the real problem is his parents. They refuse to agree to the one treatment that co...

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Over the Edge

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When the phone rings in the middle of the night, child psychologist Alex Delaware does not hesitate. Driving through the dream-lit San Fernando Valley, Alex rushes to Jamey Cadmus, the patient he h...

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.