I recently wrote a foreword for a very interesting book of interviews with successful daytraders that will be coming out shortly. Among the excellent contributors were @modernrock, @OzarkTrades, @InvestorsLive, @lx21, @offshorehunters, @elkwood66, @kroyrunner89, @DerrickJLeon, @johnwelshtrades, and @TomKellyLV, Although my trading is different from theirs--and theirs is quite different from that of portfolio managers I work with--I notice three broad areas of overlap.