Giorgio Sommer Books

Giorgio Sommer in Italien. Fotografien 1857 - 1888

By Marina Miraglia, Dietmar Siegert, Ulrich Pohlmann, Giorgio Sommer, Pino Piantanida

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Venedig Florenz Neapel

By Carlo Naya, Bernd Stiegler, Giorgio Sommer, Felix Thurlemann

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Facsimile reprint of an album of photographs by Carlo Naya, Fratelli Alinari and Giorgio Sommer acquired by an unidentified traveller during a trip to Italy in 1877, with an essay, a catalog of the...

L Italia virata all oro

By Giorgio Sommer

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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.