Since its publication twenty years ago, Sources of Power has been enormously influential. The model of decision making Klein proposes in the book has been adopted in fields including law enforcement training and petrochemical plant operation. What is the groundbreaking new way to approach decision making described in this modern classic? Most studies of decision making, based on artificial tasks assigned in laboratory settings, view people as biased and unskilled. Klein proposes a naturalistic approach to decision making, which views people as gaining experience that enables them to use a combination of intuition and analysis to make decisions. To illustrate this approach, Klein tells stories of people - from pilots to chess masters - acting under such real-life constraints as time pressure, high stakes, personal responsibility, and shifting conditions. sakriti opis