There are interesting data visualizations that appear on the Internet.  For example, The Chronicle of Higher Education recently had a special study on women as academic authors.   They looked at the authorship of over 2 million articles over 1765 fields and subfields.  They focused on the percentage of papers that had a female author.

They have an interesting visualization of this massive dataset.

Have a look at this graph.   From a statistical viewpoint, is this an effective presentation of this data?