Candles to Light the Way, from Philip J. McDonnell
Ostensibly Japanese traders swear by their candlestick charts. There is an entire genre of single day and multi day patterns that supposedly will light the trader's way in the market.
A recent paper by Marshall, Young and Rose of Massey University looked at these candlestick patterns and found them wanting. For the most part, they do not work as expected.
A scant three patterns do show some promise, but given the multiple hypotheses this is probably just be a spurious result.