basic strategy is available for free online at numerous sites. a good place to get customized charts and practice your skills is
www.blackjackinfo.com
if you want something physical to read that is accurate but not too complicated, you might consider Basil Nestor "Smarter Bet Guide To Blackjack" ($5) or Steve Bourie "American Casino Guide" ($10 on amazon with LOTS of valuable casino coupons).
just knowing basic strategy will make you better than 99% of the people who play blackjack in B&M casinos. if you think there are a lot of fish at the poker tables, then you ain't seen nothin yet (to bad you can only play WITH them, not against them).
beyond basic strategy, I would recommend these books in order:
- Blackjack Bluebook II, Fred Renzey
- Knock-Out Blackjack, Vancura and Fuchs
- Professional Blackjack, Stanford Wong
"Blackjack Attack" by Don Schlesinger is not really an instructional text, rather a compendium of statistical information for the already experienced card counter. it's fantastic for people who want to know the "why" rather than "how" of advantage blackjack play.