Robert E. Jakoubek Books

A biography of Joe Louis describing his youth in a Detroit ghetto, his rise to heavyweight champion and major sports hero, and his role in destroying the myth of racial inferiority.

Jack Johnson

By Robert E. Jakoubek

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Describes the life of the black who won the heavyweight championship boxing title in 1908.

Jesse Jackson

By Robert E. Jakoubek

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Examines the life and political career of Jesse Jackson.

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.