Otto Geeser Books

Promoting The Saints: Cults And Their Contexts From Late Antiquity Until The Early Modern Period

By Balazs Nagy, Ottó Gecser, Ottó Gecser (Editor), József Laszlovszky (Editor), Balázs Nagy (Editor), Marcell Sebők (Editor), Katalin Szende (Editor), Otto Geeser, Jozef Laszlovsky

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Pope Damasus And The Beginnings Of Roman Hagiography / Marianne Sághy -- Theological Self-definition In Byzantine Miraculous Healing / Ildikó Csepregi -- (re)claiming Adalbert : Patristic Quotation...

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.