Toni Eugene Books

In a beautiful volume featuring more than 170 maps and photographs, Mystery of the Ancient Seafarers follows the latest pursuits of National Geographic Explorer-in-Residence Robert D. Ballard as he...

Descubre estrellas y planetas

By Eugene, Toni Eugene

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Explores the world of stars and planets: star systems, recent discoveries, and comets and asteroids.

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.