Mark Hellinger Books

The roaring twenties

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A World War I veteran (Cagney) returns to New York, innocently becomes involved in bootlegging, builds up an empire and dies in a gang war. Set against a background of newsreel-like montages and na...

Moon over Broadway Short Story Index Reprint Series

By Mark Hellinger

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Moon over Broadway

By Mark Hellinger

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Moon over Broadway

By Mark Hellinger

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The Roaring Twenties VHS

By Frank Donoghue, Jerry Wald, Earl Baldwin, Mark Hellinger, Robert Rossen, John Wexley, Richard Macaulay

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High Sierra VHS

By W.R. Burnett, Mark Hellinger, John Huston, Hal B. Wallis, Jack Killifer, Tony Gaudio

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They Drive By Night VHS

By Jerry Wald, Thomas Richards, Mark Hellinger, Hal B. Wallis, Richard Macaulay, Arthur Edeson, A.I. Bezzerides

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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.