Thinking, Fast and Slow

Kahneman, a Nobel laureate in Economics, explains the two thinking systems that govern every decision you make. System 1 is fast, automatic and intuitive; System 2 is slow, deliberate and effortful. Most of your daily decisions run on the first one — and that includes a good share of your trading decisions.

This isn't a book about markets: it's the reference work on cognitive biases and decision-making under uncertainty, the research that won him the 2002 Nobel Prize in Economics. Concepts like anchoring, loss aversion and overconfidence are backed by decades of documented experiments, not loose intuitions.

You make the trading connection yourself — Kahneman never wrote with traders in mind, but every bias he describes is easy to spot on a price screen: selling winners too early out of loss aversion, overweighting whatever you just read because of the availability heuristic, or holding a losing position simply because you've already sunk time into it. It's dense and long (over 600 pages), not a one-sitting read.

It fits if you want to understand why you make the decisions you make before trying to change them, more than if you're after practical trading exercises. It pairs well with trading psychology books like Pedro Bermejo's El cerebro del inversor, also in this catalogue, which applies similar ideas from neuroscience.