A Small Error page for this tutorial.

At 22:26, Dr. Doty says "0.10 percent" but he did not want to say "percent". Rather than take another 8 hours to reencode the video, you get this!

At 29:55, Dr. Doty says "the last library answered 11 out of 10 questions correctly". Clearly, many librarians are capable of ESP, and do answer many questions even BEFORE they are asked! However, in this case, what he meant to say was "11 out of 20 questions".

At 49:04, there is a loud clunk. Ignore it, please.