I stumbled upon this post a little while ago. The essence of this visual is that it allows one to visualize the flow of data. The unique feature of this visual is that the width of each pipe represents the magnitude of each flow.

I even made use of this sort of visualization a while back when working on a project.

Sankey Diagram “Sankey Diagram”)

I currently make use of this free budgeting app, 22seven, which links up with my account and provides me with a way in which to track my expenses.

Conveniently, the app provides the ability to extract your transaction information in a comma separated (csv) format.

I will be working with my friend on this as we both use this app and enjoy its abilities (by the way, this is the same person who worked on the previous project alongside me).