Bruce Porter Books

On May 17, 1980, one of the ugliest incidents of racial violence in U.S. history rocked the city of Miami, and sent shock waves across the nation. On that date, an all-white jury acquitted five whi...

The Miami riot of 1980

By Bruce Porter

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The martyrs' torch

By Bruce Porter

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Blackout Looting

By Robert Curvin, Bruce Porter

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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.