Insight in market movements
www.markettiming.nl
Lots and lots of financial workbooks here. View list
Knowing what to buy and when is important, but this is what causes most traders to lose.
Overconfidence, and Common Stock Investment
The Trading Behavior of Individual Investors
The 4th, 6th, 10th, 14th and 18th are usually positive
The 7th and 20th are usually negative. Not enough data for the 30th.