Lewin only wrote 20 pages on Action Research which gave way to volumes of reviews and books on the subject. He did not intend for his Action Research to be a consulting recipe. Lewin developed the model to illustrate how an external person to the organization should proceed in order to have the greatest effect in solving a problem or effecting change. He believed, as previously stated, that one cannot understand a system until a change is attempted. Action Research is exactly that, taking action as research is conducted.