Lewis, John S. Books

What would it be like if entrepreneurs could literally "mine the sky" to solve Earth's three major fulfillment problems: energy, mineral resources, and food? That is the engaging premise of John S....

Rain of iron and ice

By Lewis John S.

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In the first book for the general reader that presents the full range of scientific evidence for past and possibly future dangers, noted planetologist and impact-crater expert John S. Lewis shows u...

Space Resources

By Lewis John S.

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Worlds without end

By Lewis John S.

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In this highly readable yet solidly scientific book, distinguished planetary scientist John S. Lewis brings us the latest results of the search for new planets in our galaxy. Worlds Without End is...

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.