The Bigger Pockets book store if full of great books: https://www.biggerpockets.com/store

Brandon Turner has a highly recommended one in the bookstore, though I haven't read it personally.

Stanley's book, The Millionaire Next Door, on the book shelves in bookstores and haven't picked it up.

Scott through the Biggerpockets bookstore.

Check out the BP bookstore under the Learn tab on the top of the page. 

Spend time on this site if you are interested in real estate and go to the book store and just look around for something that peaks your interest.

James - you can either go to your local advertising campaign store or, go to your local bookstore (or Amazon, etc.) and get a copy if Dan Kennedy's 'The Ultimate, No BS Guide to Sales Letters.'

Go to a bookstore and hit up the real estate section.To be successful in business, you don't have to be a great business person, you have to be a great marketer...

In fact my wife was at the bookstore tonight and picked up a book about Short Sales so I started browsing thru it and I read all their examples shown with the math they were using to determine good deals and was amazed at what they were considering a good deal.

I started researching about real estate investing a few years back, mostly in the library and book store.