"Campaign" spoke to author Martin Lindstrom at the industry launch of his new book "Small Data." Martin said: "Big Data is all about correlation -- it is to gather billions of data points and try to find some sort of pattern in it. Small Data is really the counter balance; it is what I define as seemingly insignificant observations we make in our daily lives and that is a lead to what I call the causation, the reason why; which in many ways is really the hypothesis you should use to mine the Big Data."