John Passarella Books

The stories in Between

By Greg Schauer, Jeanne B. Benzel, Joseph Gangemi, W. H. Horner

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Shimmer

By John Passarella

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Monolith Angel Simon Pulse

By John Passarella

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Wither s Rain

By John Passarella

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Supernatural: Rite of Passage

By John Passarella

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Thirty years ago, Sam and Dean Winchester lost their mother to a demonic supernatural force. Following the tragedy, their father taught the boys everything about the paranormal evil that lives in t...

Supernatural - Cold Fire

By John Passarella

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When a gruesome murder takes place in Braden Heights, Indiana, the local authorities suspect the disemboweled and eyeless corpse is the result of an animal attack. But when another body is discover...

Supernatural - Joyride

By John Passarella

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A brand new Supernatural novel inspired by the record-breaking show starring Jared Padalecki and Jensen Ackles.Sam and Dean Winchester have spent their lives on the road, battling every kind of sup...

Halloween

By John Passarella

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Buffy contre les vampires tome 32

By John Passarella

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Buffy Im Bann der Damonen Blanke Knochen

By John Passarella

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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.