Extraordinary Popular Delusions and the Madness of Crowds

Why it’s on the list: Goldman Sachs’s recommended reading list (careers site), shared by @F_Compounders on X in July 2025 and saved by Kyle.

Listed under Industry Background and Flavor. Listed twice — once on its own, and once in the combined edition with Martin Fridson and Joseph de la Vega (Confusión de Confusiones).

Re-surfaced (recommendation #2) in the reply thread to @SpencrGreenberg asking “What non-fiction book taught you the most about how the world really works?” (June 5, 2025) — a crowd-sourced list Kyle recovered by hand; the full list lives on A question for you — What non-fiction… (tweet). It was listed there as “Extraordinary Popular Delusions by Charles Mackay”.

Connections

• Charles Mackay — author.
• Goldman Sachs Recommended reading list… (tweet) — the list this came from.
• A question for you — What non-fiction… (tweet) — recommendation #2: named in this crowd-sourced thread.