Jerry Schmetterer Books

The Coffey Files: One Cop's War Against the Mob

By Jerry Schmetterer, Joseph J. Coffey

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The Coffey Files: One Cop's War Against the Mob

By Joseph J. Coffey

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E Man

By Al Sheppard, Jerry Schmetterer

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Crooked Brooklyn

By Michael Vecchione

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"From 2001 to 2013, Mike Vecchione was chief of the Rackets Division in the Brooklyn District Attorney's office, which was the largest urban prosecution agency in the country. Vecchione grappled wi...

The king of clubs

By Jay Bildstein

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Crooked Brooklyn

By Michael Vecchione, Jerry Schmetterer

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Coffey Files

By Joseph Coffey, Jerry Schmetterer

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E man

By Jerry Schmetterer

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Homicide Is My Business

By Michael Vecchione, Jerry Schmetterer

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Behind the Murder Curtain

By Bruce Sackman, Michael Vecchione, Jerry Schmetterer

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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.