Gianni Papi Books

Senza piu attendere a studio e insegnamenti

By Gianni Papi

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Caravaggio

By Gianni Papi, Maria Cristina Terzaghi, Giuseppe Porzio, Keith Christiansen

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Caravaggio And His Legacy

By Edited By J. Patrice Marandel

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They were known as the "Caravaggisti"—artists who imitated the 16th-century master’s earthy, realistic style or subject matter. Caravaggio’s impact on his contemporaries was immed...

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.