Ronald E. Heine Books

Gregory of Nyssa's Treatise on the Inscriptions of the Psalms

Average: 0.00, 0 Ratings

Gregory of Nyssa (c.330-c.395) made important contributions to both theological thought and the understanding of the spiritual life. He was especially significant in adapting the thought of Origen...

The Commentaries of Origen and Jerome on St. Paul's Epistle to the Ephesians

By Ronald E Heine

Average: 0.00, 0 Ratings

"This book is the first English translation of both the fragments of Origen's commentary and the complete text of Jerome's commentary. Origen's fragments, where they exist, are placed in parallel c...

Reading the Old Testament with the Ancient Church Exploring the Formation of Early Christian Thought Evangelical Ressourcement Ancient Sources for the Churchs Future

By Ronald E. Heine

Average: 0.00, 0 Ratings

Perfection in the virtuous life

By Ronald E. Heine

Average: 0.00, 0 Ratings

Fathers of the Church Origen Homilies on Genesis and Exodus Fathers of the Church

By Ronald E. Heine, Origen Comm

Average: 0.00, 0 Ratings

Fathers of the Church Origen

By Ronald E. Heine, Origen Comm

Average: 0.00, 0 Ratings

Origen

By Ronald E. Heine

Average: 0.00, 0 Ratings

The Montanist oracles and testimonia

Average: 0.00, 0 Ratings

Perfection in the virtuous life

By Ronald E. Heine

Average: 0.00, 0 Ratings

Philocalia of Origen

By Ronald E. Heine

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.