Michael Okuda Books

An A to Z reference to the many places, things and people of the various Star Trek films and televisions series. There are also 3 appendices. Appendix A: Historical Events In The Star Trek Univer...

The Star Trek Encyclopedia: A Reference Guide to the Future

By Debbie Mirek, Denise Okuda, Michael Okuda

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Ships of the Line Star Trek

By Michael Okuda

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Star Trek

By Doug Drexler, Margaret Clark

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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.