David Levinthal Books

Who Pushed Humpty Dumpty?

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Break-in at the Three Bears family home? It could only be one dame. Wicked witch gone missing from her candied cottage? Hansel and Gretel claim it was self-defense. Did Humpty Dumpty really just fa...

Fairy tale crimes

By David Levinthal

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Police detective Binky investigates the theft of a golden goose, the poisoning of Snow White, and other fairy tale crimes.

David Levinthal

By David Levinthal, Joanna Marsh, Lisa Hostetler, Dave Hickey, Gary Trudeau

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Hitler Moves East

By David Levinthal, Garry Trudeau

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Hitler Moves East 1941 43

By David Levinthal, Garry B. Trudeau

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Baseball

By David Levinthal, Jonathan Mahler

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War Games

By David Levinthal, Kaitlin Booher, Dave Hickey, Paul Roth

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History

By David Levinthal, Lisa Hostetler, Dave Hickey

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War Myth Desire

By David Levinthal, George Eastman Museum Staff, Lisa Hostetler

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War Myth Desire

By David Levinthal, George Eastman Museum Staff, Lisa Hostetler

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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.