Andrew R. Dyck Books

A Commentary on Cicero, De Officiis

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Composed in haste shortly before Cicero's death, De Officiis has exercised enormous influence over the centuries. It is all the more surprising that Andrew R. Dyck's volume is the first detailed En...

A commentary on Cicero, De legibus

By Andrew R. Dyck

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Cicero

By Cicero

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Cicero: Pro Sexto Roscio

By Andrew R. Dyck

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Pro Sexto Roscio

By Cicero

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"Sextus Roscius was murdered in Rome some months after the official end of the Sullan proscriptions on 1 June 81 BC. The case was tried early the following year with a young Cicero acting as defens...

Epimerismi Homerici

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Epimerismi Homerici

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Marcus Tullius Cicero: Speeches On Behalf Of Marcus Fonteius And Marcus Aemilius Scaurus: Translated With Introduction And Commentary

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Speeches on behalf of Marcus Fonteius and Marcus Aemilius Scaurus

By Cicero

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"Besides his renowned prosecution of Gaius Verres, Cicero also appeared as defence counsel in a number of cases in which former governors were accused of misconduct in the provinces. This volume un...

Commentary on Cicero de Divinatione II

By Andrew R. Dyck

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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.