Howard Roughan Books

You ve been warned

By James Patterson

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The Up and Comer

By Howard Roughan

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The Promise of a Lie

By Howard Roughan

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Sail

By James Patterson

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Katherine Dunne, who is struggling to maintain family cohesion after the death of her husband, plans an elaborate sailing vacation that is unexpectedly challenged by difficulties with her children...

The Up and Comer

By Howard Roughan

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Honeymoon

By James Patterson, Patterson James., Howard Roughan

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The promise of a lie

By Howard Roughan

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Dr. David Remler is a brilliant psychologist and author. But when beautiful, distraught Samantha Kent comes into his office pleading for help with an abusive marriage, he is blinded by her charms a...

Honeymoon

By Howard Roughan

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Honeymoon

By James Patterson, Howard Roughan

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Honeymoon

By Howard Roughan

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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.