Charles E. Sellier Books

Grizzly Adams

By Charles E. Sellier

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The Paranormal Sourcebook Roxbury Park Books

By Marie Sellier, Charles E. Sellier

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Roswell UFO crash

By Charles E. Sellier

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"What really did happen at Roswell, New Mexico, in July 1947? Did a UFO crash there? Were alien bodies recovered and autopsied? ... Colonel Philip Corso, who worked at the Pentagon in military inte...

Miracles and Other Wonders

By Charles Sellier

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The Paranormal Sourcebook

By Joe Meier, Charles E. Sellier

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Boogens

By Charles E. Sellier

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Miraculous Messages

By David W. Balsiger, Charles E. Sellier

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Evidence for Heaven

By David W. Balsiger, Charles E. Sellier

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Evidence for Heaven

By David W. Balsiger, Charles E. Sellier

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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.