William J. Birnes Books

The life and times of Mickey Rooney

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"A definitive biography of the iconic actor and Hollywood legend Mickey Rooney (1920-2014) and his extravagant, sometimes tawdry life, drawing on never-before-seen excerpts from Rooney's diary and...

The Day After Roswell

By William J. Birnes, Philip Corso

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The Day After Roswell

By William J. Birnes, Philip Corso

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Edison vs. Tesla

By Joel Martin, William J. Birnes

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UFOs and The White House

By Joel Martin, William J. Birnes

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The Haunting of the Presidents: A Paranormal History of the U.S. Presidency

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Dr. Feelgood

By Richard A. Lertzman

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Doctor Max Jacobson, whom the Secret Service under President John F. Kennedy code-named "Dr. Feelgood," developed a unique "energy formula" that altered the paths of some of the twentieth-century's...

Dr. Feelgood

By Richard A. Lertzman

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Wounded Minds

By John Liebert, William J. Birnes

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Fatima revisited

By Raul Berenguel, Fernando Fernandes, Joaquim Fernandes

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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.