When the book Freakonomics first came out, it set out to turn the study of economics on its head. Authors Steven D. Levitt and Stephen J. Dubner posed questions such as, "which is more dangerous? A gun, or a swimming pool?" "What do school teachers and sumo wrestlers have in common?" "Why do drug dealers still live with their moms?" "How much do parents really matter?" The authors set out to try and show that at the heart of it all, economics is how people get what they want, or need, particularly when other people want, or need the same thing.
That said, if you have not yet had a chance to read this series, be it due to price or any other number of factors, there is currently a great deal on the book for $1.99 on Amazon for the revised and expanded edition!