David Rivera Books

Harlem s Dragon

By David Rivera Jr.

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Playing in the Dark

By David Rivera, Rivera David Jr.

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Playing in the dark

By Rivera David Jr

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When a serial killer is suspected for a string of deaths, the murders are assigned to investigator Chemah Rivers, who quickly catches the person everyone assumes to be the culprit. At the same time...

The last prejudice

By Rivera David Jr.

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Three plus-sized women find support in one another during the ups and downs of their juicy romances and chaotic lives.

El secreto de River Side

By David Rivera Duque

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Tabula rasa

By David Rivera Gamez

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Playing in the Dark

By Rivera David Jr.

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Last Prejudice

By Rivera David Jr.

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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.