Silman's Endgame Course is quite good for any non-Masters. I got it for Christmas & have been going through it. It's broken down into sections for people in a given rating range. i.e.- basic & easy to digest endgame material for beginners, once you've mastered that, move on to the next section, etc. A very useable layout & easy to read.
Endgame theory would definitely help round out your chess knowledge if you mostly play blitz.
http://www.amazon.com/Silmans-Complete-Endgame-Course-Beginner/dp/1890085103/ref=sr_1_3?s=books&ie=UTF8&qid=1326406122&sr=1-3
I'm not that good in chess (only 1000 and something blitz rating, pretty much all I play)
I've never read any chess books before, although I've been playing the game for a few years.
What would you reccomend, to help me improve my game? Any and all suggestions appreciated.