Look at AOK's post in this thread:
http://www.flopturnriver.com/phpBB2/...oker-26429.htm

(I've put this in the sticky now too... we do get someone asking about it at least once a fortnight).

NoctoZ is right about the hands that constitute the 19; but is way off with the rest of it.

The 19 hands is a system to build on as you learn poker. It defines what hands you'll open with and how.
I've not used it myself, but many have with good results. Why? Because it's pretty sound advice.

You don't have to be "totally green" or a bad player to use it. The only reason NOT to use the 19 hands is if you have a better plan for opening yourself.

If you don't want to use AOK's starting hands then you can get a nice little sheet with Howard Lederer's videos which is more or less the same hands except Lederer places more emphasis on position and suitedness.
(He has the charts on his website http://www.secretsofholdem.com/)

Of course you shouldn't use this either, you should just go out and play winning poker by intuitively knowing what hands to open with and how.
What you can't? Pfft.

Basically you'd probably have a more refined game if you took an opening strategy like Lederer's. But it'll take longer to get to grips with ("okay, I'm in middle position with an unraised pot, can I play 44?).

AOK's system is really easy to get to grips with and most people here who've used it have reported good results at lower stakes.