John Michael Greer Books

Not The Future We Ordered

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For well over half a century, since the first credible warnings of petroleum depletion were raised in the 1950s, contemporary industrial civilization has been caught in a remarkable paradox: a cult...

Collapse Now And Avoid The Rush: The Best Of The Archdruid Report

By John Michael Greer, Greer, John Michael

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Since 2006, Author John Michael Greer Has Been Sharing His Perspectives On The Fate Of Industrial Civilization And More On His Weekly Blog, The Archdruid Report. His Writing, Both Highly Engaging A...

The Fires Of Shalsha

By John Michael Greer

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Centuries After The Death Of Earth, An Ancient Evil Stirs On The Colony World Of Eridan. Six Killing Machines Have Lunged Out Of The Northern Barrens To Annihilate An Isolated Community. The One Cl...

After Oil 4

By John Michael Greer

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In this fourth addition to the popular After Oil anthology series, John Michael Greer, author and host of the weekly peak oil big, The Archdruid Report, collects twelve new tales set in civilizatio...

Monsters: An Investigator'S Guide To Magical Beings

By John Michael Greer

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Of course that monster hiding under your bed when you were little didn't really exist. Faeries and dragons, vampires and werewolves, angels and demons, even the boogeymanall are simply figmen...

Encyclopedia Of Natural Magic

By John Michael Greer, Greer, John Michael

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A one-stop natural magic shop Natural magic is the ancient and powerful art of using material substances herbs, stones, incenses, oils, and much more to tap into the hidden magical powers of nature...

Atlantis: Ancient Legacy, Hidden Prophecy

By John Michael Greer

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is There Anything Our Modern Industrial Society Can Learn From The Story Of Atlantis, A Legend That Has Endured For Two Thousand Years? from The Dialogues Of Plato To The Modern Age Of Atlantology,...

The Golden Dawn

By Israel Regardie, John Michael Greer, Regardie, Israel, Greer, John Michael

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First published in 1937, Israel Regardie's The Golden Dawn has become the most influential modern handbook of magical theory and practice. In this new, definitive edition, noted scholar John Michae...

The Secret Of The Temple

By John Michael Greer, Israel Regardie, John Michael Greer

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Over thousands of years, the priests and sages of the ancient world discovered that the design and location of certain structures had beneficial effects on the crops that sustained life. A body of...

The Coelbren Alphabet: The Forgotten Oracle Of The Welsh Bards

By John Michael Greer

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Devised by a famous Welsh poet, the Bardic alphabet called Coelbren has always seemed to hold great promise. But as long as nobody knew how to use the system for divination, it remained simply a re...

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.