I started playing NL holdem about 7 months ago, with a very little knowledge. I did OK against my friends then i bought Dan negreanus power holdem book and Phil hellmuths book with joe navarro on tells. At this point i usually win vs my friends or lose heads up against my other buddy who is decent as well. I'm looking for a few book recommendations for either tourney or cash game play (Ive been to casino 8 times and i have a positive track record there, not balling out by any means but just dabbling in the 1-2 $ games). ive heard Haringtons books are solid, but not really sure what is still relevant or what i should spend my money on, any thoughts would be appreciated, thanks

Please see the suggestions made in the other section you posted this question in.