Should I consider a book?

I've been playing for well over a year now and have caught on to Texas Hold'em very quick. I don't know how to put this without sounding like a cockly little school boy, but I keep on winning. It seems where ever I'm playing, or who ever I play with, I come out pretty strong. I play about 3 times a week and come first at least once a week, if not more. I do go on cold streaks, and get bad habits, but when I go back to my usual strategy, I play pretty solid. Now I'm considering buying my first book.

I know that almost 90% of people online will consider themselves 'decent', but I honestly think I am 'decent'. Will a book help me out? I don't want to change my strategy and end up loosing $200 a week becuase of it.

I know it's hard to suggest for someone you've never met, but I'll take any suggestions.

Thanks for your time.

Anything By David Skylanski....

Hockey, if you are happy to keep winning at the level you are playing you should consider writing a book instead of buying one!

But good poker books help a lot.

Harrington on Holdem 1&2 are awesome for tournament play and reding Doyle's section in Super System is a must if you are going to read anything. They teach you how to play your hands.

If your aim is to understand the priciples that underpin poker and you don't mind getting really bored while you learn then as the X-Man says....Sklansky is for you.