Hi I'm a new poker player looking to improve my game significantly, the majority of my studying is done by reading various poker books/articles. I am looking for some new books to add to my collection, I currently mainly play SnG's but am wanting to get into cash games as well and down the road, once I improve significantly I would like to be a reg in MTT's. I have read a few books on general strategy and "correct" playstyles. I would love some books that go in-depth specifically on some advanced concepts and strategies, if you have any suggestions on books I should add to this list or books I plan on reading that I shouldn't bother with, please leave a comment below.

Here are the books I have already purchased, read, and plan to read:

Have read:
The Theory of Poker by David Sklansky
Super System 1 by Doyle Brunson
Super System 2 by Doyle Brunson
Harrington on Hold 'em Expert Strategy for No Limit Tournaments, Vol. 1 by Dan Harrington (currently reading)
Sit 'n Go Strategy : Expert Advice for Beating One-Table Poker Tournaments by Collin Moshman (currently reading)

Have purchased:
Every Hand Revealed by Gus Hanson
Phil Gordon's Little Green Book : Lessons and Teachings in No Limit Texas Hold'em by Phil Gordon
Small Stakes Hold 'em : Winning Big with Expert Play by Ed Miller
Online Poker: Your Guide to Playing Online Poker Safely and Winning Money by Doyle Brunson

Plan on purchasing:
Harrington on Hold 'em : Expert Strategy for No-Limit Tournaments, Vol. 2 by Dan Harrington
Harrington on Hold 'em : Expert Strategy for No-Limit Tournaments, Vol. 3 by Dan Harrington
Harrington on Cash Games : How to Play No-Limit Hold 'em Cash Games, Vol. 1 by Dan Harrington
Harrington on Cash Games : How to Play No-Limit Hold 'em Cash Games, Vol. 2
by Dan Harrington

How is Six Max by Harrington not on your list. It's the best book on cash games. Must read!