Achille C. Varzi Books

Speaking of Events

By Achille C. Varzi, James Higginbotham, Fabio Pianesi

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Insurmountable Simplicities

By Achille C. Varzi, Roberto Casati

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Parts and Places

By Achille C. Varzi, Roberto Casati

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Holes and Other Superficialities

By Achille C. Varzi, Roberto Casati

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This fascinating investigation on the borderlines of metaphysics, everyday geometry, and the theory of perception seeks to answer two basic questions: Do holes really exist? And if so, what are the...

Le tribolazioni del filosofare

By Achille C. Varzi, Claudio Calosi

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Il mondo messo a fuoco

By Achille C. Varzi

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Holes and Other Superficialities

By Achille C. Varzi, Roberto Casati

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Parts and Places

By Achille C. Varzi, Roberto Casati

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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.