Tharp's latest book 'Super Trader' is a bit different to most other books. At long last he (and Seykota and Basso) are admitting success in trading is all psychological - the whole thing, 100%. Why he then goes on to describe position sizing and business plans...well I haven't got that far yet! I think in 5-10 years he will have done away with all that and just go with the psych angle. Everything that happens is a reflection of your 'nner World', even to the most minute detail.