Michael Rajczak Books

Describes the history of the building of the first transcontinental railroad to cross the United States from Omaha, Nebraska to Sacramento, California. It looks at the men who envisioned the plan,...

The transcontinental railroad

By Michael Rajczak

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Describes the history of the building of the first transcontinental railroad to cross the United States from Omaha, Nebraska to Sacramento, California. It looks at the men who envisioned the plan,...

Before Andrew Jackson Was President

By Michael Rajczak

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Be a Citizen Scientist

By Michael Rajczak

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Before Franklin D. Roosevelt Was President

By Michael Rajczak

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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.