Created: February 2017 | Updated:

This article uses material from the Grimoire article on the Lovecraft wiki at Fandom and is licensed under the Creative Commons Attribution-Share Alike License.


Grimoires are books of great importance or power and are the source of much of the forbidden knowledge that illuminates the darkest recesses of the world. These books contain forbidden knowledge and discoveries about the [Great Old Ones]] or of many occult topics. Often times these discoveries of forbidden truths end up driving the reader insane or leading to their ruin in one way or another.

Complete List of Known Grimoires

Al-Azif (Necronomicon)

Book of Azathoth

Pnakotic Manuscripts

Seven Cryptical Books of Hsan

Magnum Immonandum

The Dhol Chants

Poakotic Fragments

Clay Cylinders of Kadethron

Ars Magna et Ultima

Atlantis and the Lost Lemuria

Book of Dzyan

Confessions of Monk Clithanus

Celaeno Fragments

The R'lyeh Text

Investigations into the Myth-Patterns of Latter-Day Primitives, with Especial Reference to the "R'yleh Text"

Thaumaturgical Prodigies in the New-England Canaan

Cthulhu in the Necronomicon

Book of Eibon

Parchments of Pnom

Testament of Carnamagos

Unaussprechliche Kulte

De Vermis Mysteriis

Cultes Des Goules

The Black Rites

Commentaries on Witchcraft

The Daemonolorum

De Masticatione Mortuorum in Tumulis

Revelations of Gla'aki

Book of Iod

On the Sending Out of the Soul

Eltdown Shards

Chronike von Nath

The Zanthu Tablets

Rituals of Yhe

Yuggia Chants

Ponape Scripture

The Prehistoric Pacific in the Light of the "Ponape Scripture"

G'harne Fragments

Cthäat Aquadingen

Legend of the Olden Runes


Legends of Liqualia

In Pressured Places


Unter Zee Kulten

Dwellers in the Depths

Ghorl Nigral

Uralte Schrecken

Chthonic Revelations


This trend was began by H. P. Lovecraft already before the creation of the Cthulhu Mythos. He also encouraged his colleagues (Clark Ashton Smith, Robert E. Howard and others) to utilize his grimoires in their stories and to invent their own. The appearance of references to these forbidden books in the works of many authors lead to readers believing they might be real. Some of the most well known grimoires in the mythos are the Necronomicon (or "Kitab Al-Azif"), Book of Eibon and Unaussprechlichen Kulten.