Antti Arjava Books

Women and Law in Late Antiquity and the Early Middle Ages

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This is the first comprehensive account of women's legal and social positions in the west from classical antiquity right through to the early middle ages. The main focus of the book is on the late...

Women and Law in Late Antiquity

By Antti Arjava

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Dumbarton Oaks Papers 59 Dumbarton Oaks Papers

By Daniel Van Slyke, Maria Parani, Robert Brill, Mark Wypyski, Jodi Magness, Asen Kirin, Christopher Lightfoot, Francesca Dell Aqua, Antti Arjava

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Petra Papyri II

By A. Arjava, L. Koenen

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What is called the Petra archive or Petra papyri is a group of ca. 140 carbonized papyrus rolls found in 1993 in a room adjacent to the main Byzantine church of Petra. The documents date from the 6...

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.