I'm going to go ahead and recommend "4 Hour work week" by Tim Ferris, BUT - you have to take that book with a big grain of salt. Some of the stuff he's talking

I'm going to go ahead and recommend "4 Hour work week" by Tim Ferris, BUT - you have to take that book with a big grain of salt. Some of the stuff he's talking about is fluff, and he's gotten some fair criticism over it - but he has some invaluable, very practical advice on automation of certain areas of a business, passive income streams, etc. Personally, I found it very helpful in moving from "full time job, but want to start my own business" stage to geting there and doing it full time.