Subscribing To Comics?

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#1 Posted by OhhIzzy (18 posts) - - Show Bio

Being the fairly new comic book reader that I am, I am left in the dark with some questions that are pretty simple and stupid. 
Like, I have only ordered back issues off of ebay... so I was wondering how to buy current volumes and series. Do you subscribe to them somehow, and if it is done that way how do you know what issues you're getting if you're coming the the middle of the volume? 
Thanks for being patient with my newbie questions!