EE Yun Shan's journals document key concepts in social psychology learned from their Social Psychology course. The concepts discussed include social loafing, where individuals put in less effort working in a group than alone; self-serving bias, where people attribute successes internally but blame failures on external factors; self-fulfilling prophecy, where expectations shape outcomes; confirmation bias, preferring information confirming one's beliefs; and observational learning, where behavior is learned through observing others. Examples are provided for each concept.