Jonathan Kellerman Books

When the Bough Breaks

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Alex Delaware, a child psychologist, is drawn to a case that endangers first his career and then his life. He is asked to help get information from the little girl who was the only witness to a gru...

Blood Test

By Jonathan Kellerman

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Over the Edge

By Jonathan Kellerman

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Rage

By Jonathan Kellerman

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Rage

By Jonathan Kellerman

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Troy Turner and Rand Duchay were barely teenagers when they kidnapped and murdered a younger child. Troy, a remorseless sociopath, died violently behind bars. But the hulking, slow witted Rand mana...

Dr. Death

By Jonathan Kellerman

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Capital Crimes

By Jonathan Kellerman, Faye Kellerman

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Capital Crimes

By Jonathan Kellerman, Faye Kellerman

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Internationally bestselling husband and wife Jonathan and Faye Kellerman team up for a powerful one-two punch with Capital Crimes, a gripping pair of original crime thrillers.MY SISTER’S KEEPER: BE...

Rage 9c HC Floor

By Jonathan Kellerman

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RAGE ALEX DELAWARE NO 19

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.