Many of you may have already read the classic book Treasure Island by the famous Scottish novelist Robert Louis Stevenson. One of the most quotable quotes from that timeless book is "I am told there are people who do not care for maps, and I find it hard to believe." As early as 1883, people like the great writer Stevenson had already believed how powerful maps are.
Fast forward to 2012. More than a century has passed and maps still exist as one of the most powerful tools that people use not only for geographical purposes. At the turn of the 21st century, maps are considered to be a useful tool for data visualization. The Big Data Era is no longer elusive. Contrary to popular belief, it is already the air that we breathe. People all around the world have been craving for data visualization that allows them to interpret information in the simplest ways possible.