Jonathan Kellerman Books

Monster

By Jonathan Kellerman

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Dr. Death

By Jonathan Kellerman

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"Who killed the killer? In his brilliant and startling new novel, Jonathan Kellerman, perennial bestselling author and premier proprietor of the psychological thriller, gives a sharp and timely twi...

Great Writers and Kids Write Mystery Stories

By Jean Little

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Blood Test

By Jonathan Kellerman

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Over the Edge

By Jonathan Kellerman

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Blood test

By Jonathan Kellerman

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When the Bough Breaks

By Jonathan Kellerman

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Over the edge

By Jonathan Kellerman

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Butcher s Theatre

By Jonathan Kellerman

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Time bomb.

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.