When asked these days about good books, I point people to Excel user guides, Data analysis and especially multivariate time series analysis books. Most people's eyes glaze over. That's just fine
Reminiscences is an easy first pick, and the Market Wizards series is also great. Trading in the zone is pretty good, and I also like Trading Rules I and II. These are books on trading in general, without going too much into specific markets/instruments.
For Gods sake stay away from books with "day trading" in the title, I've got too much of them and they're all a waste of time.