Joseph Bobik Books

Concept of Matter in Greek and Mediaeval Philosophy

By Ernan McMullin, Joseph Bobik

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Aquinas on Being and Essence: A Translation and Interpretation

By Joseph Bobik, Thomas Aquinas

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Aquinas on Matter and Form and the Elements

By Joseph Bobik, Thomas Aquinas, Joseph Bobick

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Commentary of Conrad of Prussia on De Unitate Et Uno of Dominicus Gundissalinus Study in the History of Philosophy Vol 12

By Joseph Bobik, Conrad Of Prussia, Conrad

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Veritas Divina Aquinas on Divine Truth

By Joseph Bobik

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"This book does some philosophy of religion. It takes as its point of departure what Aquinas calls divine truth (veritas divina), i.e., the collection of truths revealed to man by God. And it tries...

The Commentary of Conrad of Prussia on the De ente et Essentia of St. Thomas Aquinas

By Joseph Bobik, H.J. Rupieper

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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.