Jonathan Kellerman Books

Bad love

By Jonathan Kellerman

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Silent partner

By Jonathan Kellerman

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Self-defence.

By Jonathan Kellerman

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Time bomb

By Jonathan Kellerman

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Billy Straight

By Jonathan Kellerman

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A homeless boy in Los Angeles goes on the run after seeing a murder. Billy Straight, 12, witnessed the stabbing of a TV star's ex-wife and is sought by police and villains alike. He is afraid that...

Private Eyes 18 Copy Empty Dum

By Jonathan Kellerman

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Flesh and Blood

By Jonathan Kellerman

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The Web ISIS Large Print Compass Press

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.