Jonathan Kellerman Books

Time Bomb

By Jonathan Kellerman

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Daddy, Daddy, Can You Touch the Sky?

By Jonathan Kellerman

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Six poems designed to develop strong identity concepts.

Private Eyes

By Jonathan Kellerman

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Bad Love

By Jonathan Kellerman

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It came in a plain brown wrapper, no return address - an audiocassette recording of a horrifying, soul-lacerating scream, followed by the sound of a childlike voice delivering the enigmatic and hau...

Self Defense

By Jonathan Kellerman

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Dr. Alex Delaware doesn't see many private patients anymore, but the young woman called Lucy is an exception. So is her dream. Lucy Lowell is a special referral made by Alex's friend Los Angeles p...

The web

By Jonathan Kellerman

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This novel tells the life story of Ted Ramsey, from his beginngin as an innocent young boy and Navy deserter to his adult life as a traveling man and cattle farmer.

The Clinic

By Jonathan Kellerman

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Survival Of The Fittest

By Jonathan Kellerman

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The slightly retarded fifteen-year-old daughter of a diplomat dies on a school field trip - forced or lured into a deserted corner of the Santa Monica mountains and killed in cold blood. Her father...

DEVIL'S WALTZ

By Jonathan Kellerman

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Silent Partner

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.