Harper Paul Books

The Arab-Israeli conflict

By Harper Paul

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A history of conflict in the Middle East which has raged for most of the twentieth century.

The Arab-Israeli issue

By Harper Paul

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Traces the history of the Arab-Israeli conflict and discusses prospects for a peaceful solution. Includes a glossary of terms.

Pursuing seemingly uncomplicated affairs with the same man, Lore Cha and Elise Currin, the wives of two successful businessmen, begin fearing for their sanity and turn to the same therapist for hel...

Pacific heights

By Harper Paul

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PERTURBADO

By HARPER PAUL

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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.