Porter Stansberry Books

America 2020

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The United States is destroying itself from the inside out. The Corruption of America is a kind of moral decay ... a kind of greed ... a kind of desperate grasp for power. And it's destroying our n...

The American Jubilee

By Porter Stansberry

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Secrets of the natural resource market

By Porter Stansberry, Fawn Gwynallen, Matt Badiali

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Provides a quick introduction to natural resource investment.

America 2020

By Porter Stansberry

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The American Jubilee A National Nightmare is Closer Thank You Think

By Porter Stansberry

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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.