Richard Hantula Books

Is there life in outer space

By Isaac Asimov

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Explores the possibility of life on other planets within our solar system and elsewhere.

Legends, folklore, and outer space

By Isaac Asimov

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Isaac Asimov s 21st Century Library Of The Universe Near And Far Isaac Asimov s 21st Century Library of the Universe Near and Far

By Isaac Asimov, Richard Hantula

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Black holes, pulsars, and quasars

By Isaac Asimov

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The Milky Way and other galaxies

By Isaac Asimov

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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.