Hal Marcovitz Books

Angry Guy s Guide

By Hal Marcovitz

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An angry guy s guide

By Hal Marcovitz

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"Explores the emotion of anger in young men and the best ways to deal with it and the situations that cause it. Includes real-life examples, quotes, facts, tips, and quizzes"--Provided by publisher.

Angry Guy s Guide

By Hal Marcovitz

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A jealous guy s guide

By Hal Marcovitz

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"Explores the emotion of jealousy in young men and the best ways to deal with it and the situations that cause it. Includes real-life examples, quotes, facts, tips, and quizzes"--Provided by publis...

A jealous guy's guide

By Hal Marcovitz

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A jealous guy's guide

By Hal Marcovitz

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A jealous guy's guide

By Hal Marcovitz

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A jealous guy's guide

By Hal Marcovitz

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A lonely guy s guide

By Hal Marcovitz

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"Explores the emotion of loneliness in young men and the best ways to deal with it and the situations that cause it. Includes real-life examples, quotes, facts, tips, and quizzes"--Provided by publ...

A lonely guy's guide

By Hal Marcovitz

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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.