Harold Robbins Books

The Dream Merchants

By Harold Robbins

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Tycoon

By Harold Robbins

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The stallion

By Harold Robbins

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In this sequel to "The Betsy", Loren Hardeman is alive and well. However, the problems begin when Bethlehem Motors is transferred to his grandson, whose position is threatened by an outsider. A bat...

The Piranhas

By Harold Robbins

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The Secret

By Harold Robbins

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Sin city

By Harold Robbins

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The betrayers

By Harold Robbins

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"Luz had nightheat, the sensuous quality in a woman that makes men ache with desire. Nick loved and lusted for her the first time he saw her. But what he didn't know was that Luz had secrets - that...

The Predators

By Harold Robbins, Michael Gross

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The piranhas

By Harold Robbins

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Memories of Another Day

By Harold Robbins

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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.