Chord Diagram
Chord Diagrams (also known as Radial network diagram, Chord layout, Dependency wheel) help us visualize relationships between data arranged beautifully in a circle. You can use Chord Diagrams to visualize data ranging from relationships between Lost characters to Uber rides between neighborhoods in a city to complex scientific subjects that are even hard to pronounce.
amCharts 5 includes powerful tools to create your own interactive Chord diagrams and other Flow charts.