Richard Hantula Books

A description of Jupiter, the largest planet in our solar system, which includes information on its numerous moons, space probes which have studied it, and the 1994 collision of comet remnants with...

Marte

By Isaac Asimov

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A description of Mars, the fourth planet from our sun, which includes information on the controversy over possible life on Mars, on the planet's moons, and on space probes and spacecraft which have...

Mercurio

By Isaac Asimov

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Describes the planet closest to the sun, examining its size and composition, its surface features, its orbit, and efforts to learn more about this planet.

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.