The Complex Web of Industries Technical Communicators Support

During a LinkedIn conversation at the Technical Writer group, certain technical writers mentioned that the web of industries supported by technical communicators is very complex.  By chance, I had created an illustration in support of a point in my thesis that graphed the top employers of technical writers (refer below).

Although this table and graph only show five sets of industries, the Bureau of Labor Statistics (BLS) data shown comes from the top 10 employers of technical writers.  If you go to the source databases (http://stat.bls.gov/oes/tables.htm, National), you will find that there are over 100 industries that employ technical writers.