Learning from experience sounds rather natural. David Kolb refers to learning as a continuous process grounded in experience; it is best performed when referred to as a process rather than defining outcomes to be achieved, and it involves transactions between the individual and environment. Yet different types of learning can take place through another dimension: the concept-details dimension. Together, these two dimensions define four styles of possible learning: concrete experience, abstract conceptualization, reflective observation and active experimentation. Cell refers to four forms of learning that may take place, explaining what level of learning people can achieve from each. The four forms of learning are responsive learning, situational learning, trans-situational learning and transcendent learning. A major part of people learned knowledge probably is based on learning from experience; usually, debriefing plays quite a minor role in their learning experience. Learning the skill of observing situations and interpreting them in diverse ways is a higher level of learning.