Paul Lonardo Books

Thrill Killers

By Raymond Pingitore

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Life with cancer

By Frank Terrazzano

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"Newsday columnist and Pulitzer Prize-winning social journalist Lauren Terrazzano championed the causes of abused children, the elderly, and the homeless, truly becoming a voice for the voiceless t...

Thrill Killers

By Raymond Pingitore, Paul Lonardo

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Ted Bundy

By Paul Lonardo

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Homegrown

By Paul Lonardo

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Reunion of Souls

By Paul Lonardo

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The New Debtors Prison

By Paul Lonardo, Christopher B. Maselli

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Monstrosity

By Paul Lonardo

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Caught in the Act

By Jeannie McDonough

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We walked in on a surreal scene. There are few words, if any, to accurately describe the abject horror... What Jeannie and Kevin McDonough saw was a wanted, multi-state serial killer about to tak...

Strike IX

By Paul Lonardo

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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.