interesting diagrams

Attractive and inspiring found diagrams: On the far left, I enjoy the sophisticated color pallet, the surprisingly beautiful use of symmetry which appears simplify the complexity of the information and the clever use of multiple type styles (and sizes) to establish hierarchy. In the middle diagram of (Japanese air raid zones) the use of overlapping circles and corresponding airplane color helps to clarify overlaps where planes could be located. In the last diagram, I enjoy the hand-rendered element.