Leo Sullivan Books

Life

By Leo L. Sullivan

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Dangerous Triple Crown Publications Presents

By Leo Sullivan

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Street love

By Leo Sullivan, Danielle Santiago, Quentin Carter, T. Styles, Keisha Ervin

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Innocent

By Leo L. Sullivan

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"After years of tricking for money, Tamara lands a job as a prison guard with the Federal Penitentiary in Atlanta. Soon after, Tamara realizes that her baby daddy is on death row at the prison that...

Keisha Trigga

By Leo Sullivan, Porscha Sterling

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A gangsta s bitch 3

By Leo Sullivan

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A Gangster s Daughter

By Leo Sullivan

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The Coldest Love She's Ever Known

By Leo Sullivan

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Urban lit superstar and eBook bestseller Leo Sullivan debuts in print on the Dafina list with this urban love story of crime and betrayal.Sunday Kennedy has never had an easy life, but nothing has...

Saving Sierra

By Leo Sullivan

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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.