Neal Karlen Books

Jen-X: Jenny McCarthy's Open Book

By Neal Karlen, Jenny McCarthy

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The Story of Yiddish: How a Mish-Mosh of Languages Saved the Jews

By Neal Karlen

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Augie s Secrets

By Neal Karlen

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Augie Ratner, the proprietor of Augie's Theater Lounge & Bar on Hennepin Avenue, was the unofficial mayor of Minneapolis's downtown strip in the 1940s and 1950s. In a few blocks between the swanky...

Augie s Secrets The Minneapolis Mob and the King of the Hennepin Strip

By Neal Karlen

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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.