The 48 Rules of Discipline

Joan Gallardo brings together 48 discipline principles in this book, meant for life in general and applicable to trading too.

Each chapter is short and follows the same structure — rule, explanation and concrete action — so you can open it at any moment and act on something right away, without needing to read it cover to cover. It isn't a trading book in the strict sense, but a personal development one built around something every trader recognizes: how hard it is to keep discipline day after day.

Gallardo doesn't philosophize about willpower or promise shortcuts; he offers concrete levers to build habits from scratch or rebuild them once you've lost them. That applicability is exactly what makes it useful outside its original field.

It works best as a companion — the book you keep alongside a trading or psychology title, not instead of one — and fits well if you recognize your problem isn't the strategy but sticking to it. If you're after market-specific content, this isn't the place to start.