David Schulz Books

Sara'S Biggest Valentine

By David Schulz, Jacqueline A. Ball

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76 pages : 20 cm

Battle Of The Class Clowns

By David Schulz, Jacqueline Ball

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I Wonder Why Fish Don'T Drown

By David Schulz, Annabelle Donati

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A look at fish and other underwater creatures discusses what a fish is, if sea horses can gallop, if starfish twinkle, what jellyfish are made of, and other facts.

I Wonder Why Fish Don'T Drown: And Other Neat Facts About Underwater Animals

By David Schulz, Annabelle Donati

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A look at fish and other underwater creatures discusses what a fish is, if sea horses can gallop, if starfish twinkle, what jellyfish are made of, and other facts.

Sports Nostalgia Quiz Book - Zander Hollander - Mass Market Paperback

By David Schulz, Zander Hollander, Schultz - Undifferentiated

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The Illustrated Sports Record Book

By David Schulz, Zander Hollander

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The First Official Nfl Trivia Book

By David Schulz, Jim Campbell, Dom Forker, Zander Hollander, Mickey Herskowitz, Steve Perkins, Ted Brock

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The Ultimate Baseball Quiz Book

By David Schulz, Jim Campbell, Dom Forker, Zander Hollander, Mickey Herskowitz, Steve Perkins, Ted Brock

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Everything You Always Wanted To Know About Sports And Didn'T Know Where To Ask

By David Schulz, Jim Campbell, Dom Forker, Zander Hollander, Perkins, Mickey Herskowitz, Steve Perkins, Ted Brock, Mickey Herskowitz & Steve

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The Illustrated Sports Record Book

By David Schulz, Zander Hollander

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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.