Graphic designers: please don't make charts difficult to read. This is useful data, but obscured by too much "non-data ink" as Edward Tufte said [1]. [1] Edwar

Graphic designers: please don't make charts difficult to read. This is useful data, but obscured by too much "non-data ink" as Edward Tufte said [1]. [1] Edward R. Tufte. The Visual Display of Quantitative Information. Cheshire, Connecticut: Graphics Press, 1983. ISBN 0-9613921-0-X.