Benjamin N. Dykes Books

This volume presents the famous medieval Persian astrologer Abū Ma'shar's complete book on natal predictive techniques, translated from the original Arabic for the first time.

Astrology of the World II

By Benjamin N. Dykes

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Astrology of the World II: Revolutions & History is the second in a trilogy of translations in traditional mundane astrology, from Latin and Arabic astrologers. This volume focuses on astrological...

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.