Advice/Info on card counting?

after watching "21" the other day i got the same idea and picked up a book at the local library on blackjack. it was very informative and extremely helpful. the 'mensa' book explains card counting, basic strategy, and the game itself. i think that the hardest part is basic strategy but card counting is pretty cool and pretty easy. it was a small book and didnt take much time to read. it's called "mensa guide to blackjack" by joshua hornik. as it turns out there's a lot more to blackjack than card counting.