David Klass Books

Firestorm

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Jack Danielson is in a race against time to save the oceans and the future.Publishers WeeklyThis gripping first novel in the Caretaker Trilogy introduces high school senior Jack Danielson: You want...

Timelock

By David Klass, David Klass, Klass, David

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Is this the end of Jack Danielson?Jack Danielson has spent the last year risking everything to save the oceans and the Amazon. Now, heâs more than ready to get back to a normal life and spend som...

You Don'T Know Me?

By David Klass, D Klass

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Home Of The Braves

By David Klass

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You Don'T Know Me

By David Klass, D. Klass, Klass, David

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You don't know me.

You Don'T Know Me

By David Klass, David Klass

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You Dont Know Me

By David Klass, Klass

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Wirbelsturm

By David Klass

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Tu No Me Conoces/ You Don'T Know Me (Gran Angular) (Spanish Edition)

By David Klass, Isabel Gonzalez-Gallarza Granizo

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Out Of Time

By David Klass, David Klass

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'provocative, Important And Very Thrilling Novel. I Loved It' James Patterson 'a Gripping Story . . . Klass Can Weave A Tale Like Few Others.' David Baldacci *** America's Most Wanted Man. The Worl...

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.