This document discusses emotional intelligence (EI), including its origins in Darwin's work and modern conceptualization by researchers like David McClelland and Daniel Goleman. It defines EI and explains Goleman's model of EI, which includes self-awareness, self-management, social awareness, and relationship management. Research discussed found that EI is twice as important as cognitive skills for success and leadership. The document provides summaries and assessments related to developing EI skills and evaluating one's own EI.