Memoirs of Extraordinary Popular Delusions and the Madness of Crowds (1852)
Memoirs of Extraordinary Popular Delusions and the Madness of Crowds (1852)

Written by Charles Mackay, this seminal work serves as a foundational exploration of crowd psychology. Although the provided text mentions a 1852 date in the title, the work was originally brought to light in 1841.
This journalistic investigation delves into the inherent vulnerability of the human psyche when faced with collective manias. Across three volumes, Mackay explores the intersection of finance, faith, and folly.
The Nature of Collective Mania
Mackay utilizes vivid storytelling and anecdotal evidence to dismantle rationality popular delusions. His scope is vast, ranging from the absurd (how political climates dictate the length of one's beard) to the catastrophic (the collapse of massive economic bubbles).
The "cycle of madness" described in the text can be visualized as follows:
Because of his keen analysis of economic bubbles, Mackay's work is still cited today by financial experts to help and decode the mechanics of modern speculation.
📚 Comprehensive Contents
The book is a curated gallery of human error. Readers can explore the following topics:
- The Mississippi scheme
- The south-sea bubble
- The tulipomania
- The alchymists
- Modern prophecies
- Fortune-telling
- The magnetisers
- Influence of politics and religion on the hair and beard
- The crusades
- The witch mania
- The slow poisoners
- Haunted houses
- Popular follies of great cities
- Popular admiration of great thieves
- Duels and ordeals
- Relics
🛠️ Technical Specifications & Metadata
The following table summarizes the archival details of this Project Gutenberg edition:
| Attribute | Detail |
|---|---|
| Author | Charles Mackay (1814-1889) |
| LoC Class | AZ (General Works: History of scholarship/learning) |
| Reading Level | 8th - 9th Grade |
| Reading Ease | |
| Copyright | Public Domain (USA) |
| eBook Number | 24518 |
Subject Classifications:
- Social psychology
- Investments & Stock exchanges (Psychological aspects)
- Occultism, Alchemy, and Delusions
- Impostors and Swindlers
- Hallucinations and Common Fallacies
📥 Access and Formats
This text is available for free via Project Gutenberg in several formats to accommodate different devices:
- Modern E-readers:
- EPUB (Standard): 15.3 MB
- EPUB (No images): 827 kB
- Kindle: 17.1 MB
- Legacy/Alternative:
- Older Kindles: 16.9 MB
- Plain Text: 1.6 MB
- HTML (zipped): 14.9 MB
To simulate a download request for the plain text version:
curl -O https://www.gutenberg.org/files/24518/24518-0.txt
📝 Final Notes
Release Date: February 5, 2008 Last Updated: June 26, 2021
Credits: This digital version was made possible by the efforts of Jonathan Ingram, Bill Tozier, Barbara Tozier, and the Online Distributed Proofreading Team.