Richard Stim Books

Nolo s Patents for Beginners

By David Pressman, Richard Stim

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Patenting Art and Entertainment

By Gregory Aharonian, Richard Stim

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Patent Pending in 24 Hours

By David Pressman, Richard Stim

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Patent Pending in 24 Hours

By David Presman, Richard Stim

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Patent copyright trademark

By Richard Stim

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Whether you are in the world of business or creative arts, understanding the laws that govern your work is critical to success. But given the often convoluted terminology that surrounds patents, c...

Patent Copyright and Trademark

By Richard Stim

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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.