Weapons of Math Destruction

Armas de destrucción matemática

Cathy O'Neil

Read it in Spanish. Made me think differently about how algorithms aren't neutral. They reflect the priorities of whoever built them.

Atomic Habits

James Clear

Useful framework for thinking about how small changes compound. Applied it more to training than to studying, honestly.

The Inner Game of Tennis

W. Timothy Gallwey

Required reading if you coach. The mental side of performance is almost entirely about getting out of your own way.

The Psychology of Money

Morgan Housel

Better than most finance books because it doesn't pretend people make financial decisions rationally.

The Intelligent Investor

El inversor inteligente

Benjamin Graham

Read it in Spanish. Dense but worth it. Changed how I think about the difference between price and value.

The Innovators

Los innovadores

Walter Isaacson

History of how computing actually got built. The collaboration parts stuck with me more than the individual genius stories.

Rafa: My Story

Rafa, mi historia

Rafael Nadal

Read it in Spanish obviously. What stands out isn't the tennis. It's how much of elite performance is just refusing to stop.