Earlier this year, I set a goal of having a net worth of $1,000,000 by the time I turn 40. What seemed like a lofty goal at one point in my life now seems decently feasible. I owe a lot of that success to the investment I’ve made in my education. And no, I’m not talking about college degrees (Go Green!). I’m talking about the small investments I’ve made in purchasing some of the most inspirational, eye-opening and motivating books out there on business, personal finance and professional growth.