David Greenberg Books

Presidential Doodles

By David Greenberg, Cabinet Magazine

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Super silly school poems

By Greenberg David

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A humorous collection of school-themed poems includes entries that celebrate such subjects as a show-and-tell mystery, a secret recess, homework excuses, and a slithering class pet that has escaped.

The great school lunch rebellion

By Greenberg David, David Greenberg

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Food fight in poetry, complete with justice for those involved.

Your Dog Might Be a Werewolf Your Toes

By David Greenberg

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The great school lunch rebellion

By David Greenberg

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Bugs

By David T. Greenberg

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Bugs

By David Greenberg

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Slugs

By David T. Greenberg

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Welfare to Work

By Karl Ashworth, David Greenberg, Robert Walker

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Play it to a bust

By Greenberg David

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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.