Leonard Peikoff Books

The Early Ayn Rand

By Ayn Rand, Leonard Peikoff

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Objective Communication

By Leonard Peikoff

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Ayn Rand’s philosophy of Objectivism is increasingly influencing the shape of the world from business and politics to achieving personal goals. Here, Leonard Peikoff—Rand’s heir—explains how you ca...

The ominous parallels

By Leonard Peikoff

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Ominous Parallels Ayn Rand Library Vol 3

By Leonard Peikoff

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Objectivism

By Leonard Peikoff

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THE 25TH ANNIVERSARY EDITION—The definitive statement of Ayn Rand’s philosophy as interpreted by her best student and chosen heir. This brilliantly conceived and organized book is Dr. Leonard Pei...

The Meridian Anthology of Restoration and Eighteenth-Century Plays by Women

By Katharine M. Rogers

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Women playwrights of the Restoration and eighteenth century were bawdy and proper, apologetic and defiant, often derided and occasionally praised. The seven women represented in this groundbreaking...

Ominous Parallels

By Leonard Peikoff

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Ayn Rand chose Leonard Peikoff to be her successor as the spokesman for Objectivism. And in this brilliantly reasoned, thought-provoking work we learn why, as he demonstrates how far America has be...

The Journals of Ayn Rand

By Ayn Rand, Leonard Peikoff

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Rarely has a writer and thinker of the stature of Ayn Rand afforded us access to her most intimate thoughts and feelings. From Journals of Ayn Rand, we gain an invaluable new understanding and appr...

The voice of reason

By Ayn Rand

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Objectivism: The Philosophy of Ayn Rand

By Leonard Peikoff

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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.