David Zeltser Books

Ninja baby

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Nina has always been quick, sneaky, and very independent, a Ninja baby--but then her parents bring home a Kung Fu Master, and Nina has to reconsider her strategy.

The universe ate my homework

By David Zeltser

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Abby hates doing homework. In fact, she'll do just about anything to get out of it. So when she discovers an amazing scientific recipe for creating a parallel universe where she'll never have to do...

The Night Library

By David Zeltser

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Lug

By David Zeltser

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Lug is a cave boy who would rather paint than fight. When he is banished from his clan, he and his two friends discover that the Ice Age is coming, and he must figure out how to save their people....

Winzent und der Gletscher des Schreckens

By David Zeltser

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Codzilla

By Jared Chapman, David Zeltser

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Ninja Baby

By Diane Goode, David Zeltser

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Ninja Baby

By Diane Goode, David Zeltser

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Ninja Baby

By Diane Goode, David Zeltser

Average: 0.00, 0 Ratings

Ninja Baby

By Diane Goode, David Zeltser

Average: 0.00, 0 Ratings

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.