Everyday Stock (Re)Investing

[NorthWesterner]

I don't mind at all -- loved the outline of calls. I sort of understand them in general, and did write a bunch of them on one stock I had that kept climbing and I wanted to make some money and was willing to be bought out if it climbed, which it kept doing, since I wanted to cash some out anyhow.

But your chart -- well, I have no idea what most of those lines are, and even less idea what they mean.

Edit: I see now that there's a Chart School. Maybe I should go to Chart School! So if you think your best answer to me is do that, say so. Or if you have better answers, great!
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What, for example, is RSI? Possibly Relative Strength Index? What does it measure, what is good and what is bad, what do the numbers (14) 58.2 mean, and what value do they have for the investor?

MA I know as moving average, MA(50) is 50 day moving average and MA(200) is 200 day moving average. But

And is EMA the moving average of volume? And if so, why the E??

Then there's MACD(12,26,9) 0.57. Huh? I see two lines and a filled in line section. (Well, you know what I mean). But I have NO idea what any of this means, or what it is supposed to be telling me.

Ditto for OBV (14 May). Is the V for volume? Assume the MA(30) is the 30 day moving average again, but why it's plotted against OBV and what it means when they cross I have NO idea.

So -- care to enlighten me (and anybody else who wanders by), or should I go to Chart School (assuming I can go there -- is this a pay site?)