Patrick M. Brennan Books

By nature equal

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What do we mean when we refer to people as being equal by nature? In the first book devoted to human equality as a fact rather than as a social goal or a legal claim, John Coons and Patrick Brennan...

Civilizing Authority

By Patrick Brennan

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Best plays & monologues 2000

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The vocation of the child

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By Nature Equal

By John E. Coons, Patrick M. Brennan

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By Nature Equal

By John E. Coons, Patrick M. Brennan

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Legal affinities

By Patrick M. Brennan, Jefferson Powell, Jack L. Sammons

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Simbiotic

By Patrick M. Brennan

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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.