Matt Hranek Books

A man his watch

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"Celebrate the enduring relationship between a man and his watch. Paul Newman's Rolex Daytona, a gift from his wife, Joanne Woodward. Astronaut Waly Schirra's Omega Speedmaster, which became the fi...

Tumi

By Stephen Lewis, Matt Hranek

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Martini

By Matt Hranek

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Negroni

By Matt Hranek

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Man and His Watch

By Matt Hranek

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Man and His Car

By Matt Hranek

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Man and His Car

By Matt Hranek

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1964 Land Rover Series IIA 500 Piece Puzzle

By Artisan Puzzle, Matt Hranek

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Iconic Watches 500 Piece Puzzle

By Artisan Puzzle, Matt Hranek

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Go Bag

By Matt Hranek

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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.