The Law of Attraction, quite simply put, is ask and you shall receive.  A more complete description might be to determine what you want.  Intend for it to happen, remove any conflicting thoughts, and focus on the outcome you want until it happens, or at the very least don’t think of any thoughts counter to your intention until you get what you intended.

There’s going to be a lot more info on how to more effectively do this process on this site, but that’s the basics in a nutshell.

How it works is the whole point of this site.  Basically, it works off the fact that your thoughts have a certain frequency (can be measured by many different devices, like an EEG), and if you focus your thoughts on what you want, your thoughts will resonate like a pitchfork with what you desire, and what you desire will start coming to you.  It may come fast or it may come slow, but if you keep your focus, you’ll maintain your frequency, and sooner or later, what you desire will come to you.

Within certain limits (some people will say there are no limits, just limiting beliefs), you can attract anything into your life with this process, no matter how big or how small.  The only caveat that I would caution against is that you don’t try to attract someone specific, and that you don’t try to attract away someone else’s belongings/possessions.  In other words, don’t try to control someone, and don’t use this process to ‘steal’ from other people.

A basic tenet of the Law of Attraction is that there’s more than enough for everyone, so you don’t need to ‘take’ from anyone.