If you were to take a survey of all the active real estate investors in the United States, I guarantee that 95% of them will say the book that changed their perspective on investing was Rich Dad, Poor Dad, by Robert Kiyosaki. It is one of those life changing books that will teach you why cash flow properties are so important, and why investing in real estate needs to be a part of your investing portfolio.
I picked it up about 15 years ago, and I read it in one sitting, staying up until the wee hours to finish it. It blew my mind and changed my life.
Grab it from the library or from Amazon. If you’re not a reader, get the audio version. And below is a nice summary of the book (but by no means should it take the place of reading it).