Richard Smoley Books

Inner Christianity

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An eye-opening introduction to the complex world of esoteric Christianity—perfect for the general readerThis guide to mystical and esoteric Christianity speaks from a nonsectarian point of vi...

The Essential Nostradamus

By Richard Smoley

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From his predictions about life and death in the Middle French court of Catherine de' Medici to his uncannily suggestive preconceptions of World War II, Michel de Nostradamus has aroused continual...

The Truth About Magic

By Richard Smoley

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Hidden Wisdom

By Richard Smoley, Jay Kinney

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Christian Gnosis

By Richard Smoley, C. W. Leadbeater

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Esoteric Christianity

By Richard Smoley, Annie Wood Besant

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Golden Thread

By Joscelyn Godwin, Richard Smoley

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According to Matthew

By Richard Smoley, Catherine E. Creeger, Rudolf Steiner

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The Essential Nostradamus

By Richard Smoley

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The Essential Nostradamus

By Richard Smoley

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A handsome, compact new edition of the singularly reliable translation of the writings of history's most famous seer-now published with a new afterword on Nostradamus and 2012. The prophecies of...

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.