Don't know if I'd recommend day trading, but I do recommend more a hybrid between the value investing buy and hold forever theory and a trading/speculating strategy that fills in some of the not-well answered questions in value investing---like when to sell.
Good stuff. Jack Schwager actually has about 3 books where he interviewed some of the greatest traders of all time. Very influential in terms of having the right mindstate. Less so in terms of actionable strategies.
Couple big influences on me:
How to Make Money in Stocks by William O'Neil
Trend Following - Michael Covel
Anyways, happy to see both threads.