There are at least 10 books that any serious trader must read IMO, here's the list:
1 - Trading in the Zone by Mark Douglas
2 - Market Wizards (and The New Market Wizards) by Jack D. Schwager
3 - Reminiscences of a Stock Operator by Edwin Lefèvre
4 - Technical Analysis of the Financial Markets by John Murphy
5 - Pit Bull - Lessons from Wall Street's Champion Day Trader by Martin Schwartz
6- Trade your way to financial freedom by Van Tharp
7- The Right Stock at the Right Time by Larry Williams
8- One Good Trade by Mike Bellafiore
9- The Daily Trading Coach by Brett N. Steenbarger
10- Outliers by Malcolm Gladwell (nothing to do with trading but important to anyone who wants to be successful)
Enjoy your reading!