Mario Murillo Books

Every year the United States spends millions of dollars to help the war-ravaged country of Colombia. But help it with what? In Colombia and the U.S. Mario Murillo explores the misdirected and devas...

Islands of Resistance

By Mario Murillo

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While 1998 marked the 100th anniversary of the United States' invasion and takeover of Puerto Rico, it wasn't until 1999 that the island's political movements reappeared on the radar screen of the...

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.