Annie Duke, renowned poker player, writes about applying poker thinking to life. Specifically, separating outcomes from expected value, and making choices with incomplete information. If you've played a lot of poker—or, traded in financial markets—there's not too much surprising here.
In terms of applicable value, the lesson is fairly short, and could have been a blog post. Seek contrarian opinions and evidence against your biases. Don't blame negative outcomes on bad luck or necessarily bad decision making: the outcome only has a loose connection to the quality of the decision. Review decisions with other smart, experienced people.