Charles J. Caes Books

Beyond time

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This book is designed as a survey of classical ideas on eternity and immortality and as an introduction to the works of some of the great philosophers, men such as Kant, Aquinas, Augustine, Aristot...

Beyond time

By Charles J. Caes

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Natural U.

By Charles J. Caes

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Natural U.

By Charles J. Caes

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The Young Zillionaire s Guide to the Stock Market Be a Zillionaire

By Charles J. Caes

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How Do We Know the Speed of Light Great Scientific Questions and the Scientists Who Answered Them

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Studies in starlight

By Charles J. Caes

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Studies in Starlight

By Charles J. Caes, CAES

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Cosmology, the search for the order of the universe

By Charles J. Caes

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Cosmology, the search for the order of the universe

By Charles J. Caes

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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.