Not bad for a second post under my tag. Here's some advice that I hope you take seriously: cite your sources. I can assume the code is specifically yours, correct? If not, someone will end up fact-checking and marking you for plagiarism. Further to that, those indented explanations came from somewhere, so you need to give credit to the sources that you use before you are flagged.

Please take this into consideration if you continue to use this tag. I will overlook for the 3rd Post since it was already up before my comments.

Aside from that, good choice for the next lesson... what would they use it for?