Kathleen Marden Books

True Stories of Alien Abduction

By Stanton T Friedman, Kathleen Marden

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324 pages : 23 cm

Making Contact

By Kathleen Marden, Denise Stoner

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Captured the Betty and Barney Hill UFO Experience

By Kathleen Marden, Stanton T. Friedman

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The alien abduction files

By Kathleen Marden

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Fact fiction and flying saucers

By Stanton T. Friedman

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There is a clear conspiracy to deny the existence of UFOs. The mainstream media has misinformed us for years about UFO studies conducted by highly regarded scientists associated with some of the fi...

True Stories of Alien Abduction

By Kathleen Marden, Stanton T. Friedman

Average: 0.00, 0 Ratings

Making Contact

By Kathleen Marden, Denise Stoner

Average: 0.00, 0 Ratings

UFO Cover Up

By Kathleen Marden, Stanton T. Friedman

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Extraterrestrial Contact

By Kathleen Marden

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Science was wrong

By Stanton T. Friedman

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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.