Jonathan Kellerman Books

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Silent Partner

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The bestselling author of When The Bough Breaks, Blood Test, and Over The Edge delivers the most stunning novel yet and featuring psychologist-detective Dr. Alex Delaware. At a party for a con...

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In this riveting, astute, high-tension thriller, the creator of psychologist sleuth Alex Delaware weaves a Dickensian tale of innocence, urban depravity, and the resilience of the human spirit, and...

Monster

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Alex Delaware is back! And in Jonathan Kellerman's riveting and ingenious new novel, Monster, he faces one of the most grisly and baffling mysteries of his career: How can a nonfunctional psychotic...

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.