The Art of Strategy

I've recommended this book to a lot of people in real life, so I thought I'd recommend it here too. This book is a how to for applying game theory to real-life problems. The nugget that I use every day is this: "When making a plan to achieve a goal you should start at the end goal and build your plan backward towards your current state." In other words, figure out what success looks like and start backing from that situation towards the situation you're currently in.