Information visualization is a computer-assisted method for data representation. By processing the information into a visual framework, it enables the user to observe, browse, receive and understand information. Information visualization is a new research field that concentrates on using visualizing techniques towards helping people understand and analyze data. The fundamentals of visualization includes GUI design, Computer Graphics, HCI, cognitive theories and graphic design. Based on Schneiderman’s classification, information visualization includes one, two, three ad multidimensional as well as time-based, hierarchical and network data.