The Group Mind: A Sketch of the Principles of Collective Psychology With Some Attempt to Apply Them to the Interpretation of National Life and Character

"The Group Mind: A Sketch of the Principles of Collective Psychology" by William McDougall, is a scientific exploration from the early 20th century that seeks to define how collections of people form thoughts and act together, particularly when it comes to national identity. McDougall kicks off his study by pointing out the need for a clear understanding of psychology when looking at groups as key analytical units. He argues individual study is not enough and that a look at internal group interactions must be considered. He then sets out to build a base understanding of group psychology to help explain social actions and how these collective mentalities apply to national traits.