Cyril O Regan Books

"Jacob Boehme, the seventeenth century German speculative mystic, influenced the philosophers Hegel and Schelling and both English and German Romantics alike with his visionary thought. Gnostic Apo...

The anatomy of misremembering

By Cyril O Regan

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Volume 1 : This compelling work is the most comprehensive and sophisticated account to date of the relationship between Hans Urs von Balthasar - a Swiss theologian and Catholic priest - and the Ger...

Theology and the spaces of apocalyptic

By Cyril O Regan

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"O'Regan pointed to the "exile" of apocalyptic in the modern period, and its "contemporary return" in a host of theologians, including, but not limited to: Hans Urs von Balthasar, Jurgen Moltmann,...

Philosophy of Drama

By Cyril O Regan, Jozef Tischner, Artur Rosman

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Eucharist in Modern Philosophy

By Cyril O Regan, Xavier Tilliette, Jonathan Martin Ciraulo

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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.