Indeed, it's something I had not considered until I was urged to try it and did it, and it proved extremely effective. My interview skills went from the equivalent of "Hurr Durr my resume iz shitty but plz hire me I need job!!!11one" to "Greetings. I have here an enticing offer that shall certainly prove beneficial to all parties involved. If you would please look at these numbers, I believe I can demonstrate how to arrange something that will exceed your expectations."

Definitely glad I took that course. YMMV, but at the organization I went to they had very impressive satisfaction ratings and job-finding rates (which is probably the entire reason why they are surviving solely on government funding, since the government is probably getting more money from the additional employment than they are spending on these programs, judging by how impressive the numbers sounded).