You've seen Silman's Reassess Your Chess?
Looking to improve strategic/positional play.

You've seen Silman's Reassess Your Chess?
Going by your rating this book is specifically targetting for you, it focuses on developing plans against a wide variety of imbalances that occur in the middlegame and should shed light onto your play.
Chess Strategy for the Tournament Player, by Alburt and Palatnik.
I found it helpful, but not too advanced to understand. Some of the material was pretty tough for me though: I plan on going over it again in a while when I think I can grasp it better.

Thanks for the replies. I haven't read 'Reassess your chess' yet but I have heard alot of good things about it. I have also heard good stuff about 'My system' by Nimzowitsch, maybe I will consider getting both of them. Theres also a strategy book by Dvoretsky but it might be a little advanced for me, I am not sure. What do you guys think?
Well I have a few books on the opening, some on tactics, a couple on endgames. But what my collection lacks is a good book on stategic/positional play. I feel like I am rather weak in this area because often in quiet positions I have trouble coming up with a plan or just improving my position. I tend to play for tactical positions but things don't always go that way and I need to learn to play more positionally aswell. I am looking for a book that targets intermediate and advanced players as I already know the basics of strategy. Any ideas?