We often break down entrepreneurship into B2B ("business to business," i.e., businesses whose customers are other businesses) and B2C ("business to consumer"). For B2B, I recommend "Crossing the Chasm." For B2C, one of my favorite books is "The Lean Startup," which takes a narrower view but it gives one specific tactic for innovating quickly. It's a little narrow but it's very good in the area that it covers.
Then to break B2C down even further, two of my favorites are "Talking to Humans," which is a very short book that teaches you how to develop empathy for users you want to serve by talking to them. Also, "Rocket Surgery Made Easy." If you want to build products that are important, that users care about, this teaches you different tactics for learning about users, either through user studies or by interviews.
Then finally there is "The Hard Thing about Hard Things." It's a bit dark but it does cover a lot of useful territory on what building an organization is like.
For people who are trying to figure out career decisions, there's a very interesting one: "So Good They Can't Ignore You." That gives a valuable perspective on how to select a path for one's career.