John Wortley Books

"The Tales and Sayings of the Desert Fathers (Apophthegmata Patrum) are a key source of evidence for the practice and theory respectively of eremitic monasticism, a significant phenomenon within th...

A synopsis of Byzantine history 811 1057

By John Scylitzes

Average: 0.00, 0 Ratings

"John Skylitzes' extraordinary Middle Byzantine chronicle covers the reigns of the Byzantine emperors from the death of Nicephorus I in 811 to the deposition of Michael VI in 1057, and provides the...

Book of the elders

By John Wortley

Average: 0.00, 0 Ratings

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.