Kellerman Jonathan Books

The stakes are high and the players drawn from the highest echelons of LA society, this will be one of Alex Delaware's and Milo Sturgis' most perilous journeys. A dark and twisted tour of unthinkab...

Time Bomb

By Jonathan Kellerman

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Bad love

By Jonathan Kellerman

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True detectives

By Jonathan Kellerman

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True detectives follows Moe Reed and Aaron Fox on the twisted trail of a missing girl, a dark, baffling whodunit that forces the brothers to put aside their mutual animus - and to confront the unre...

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.