How you judge work determines how you do it. Choose poorly, and you can end up wasting a lot of time and energy pursuing the wrong things.
Reaching a goal requires precision, a general effort won't do. Lessons in how to walk the right path, from those who have already reached the summit.
Some ideas are so powerful, once you learn them you see them everywhere. Here are ten useful models for making sense of the world.
Don't confuse a strategy that works with one that is merely effortful. Good strategies are rarely easy, but a bad plan done furiously is still a bad plan.