The author has created another graph-based comic strip. This one appears to be a bar graph comparing categories of 11th grade activities with their usefulness to career success. One would do well to note the complete lack of art, sports, business and socialization activities in this graph.
As with most of these comics, the underlying assumption is that the reader is an IT professional who discovered a love for programming in high school. The punchline here relies completely on reader identification: ”This comic mentioned PERL. I use that from time to time in my job. The author understands me and I can imagine being his friend.”