Tony Bohn and John Kloeker discuss the theories of Emotional Intelligence (EQ) and how this concept better determines one's success more than IQ.

Goleman, D. (1995). Emotional Intelligence Theory, Emotional Intelligence – Why it can matter more than IQ

Bradberry T & Greaves J. (2009). Emotional Intelligence 2.0

Howard Gardner's Frames of Mind (1983) The Theory of Multiple Intelligences introduced the idea that traditional types of intelligence, such as IQ, fail to fully explain cognitive ability.