This report reviews decades of research comparing emotional intelligence (EQ) and IQ as drivers of success, summarizing key models (like Goleman’s five domains and Mayer–Salovey–Caruso’s ability-based framework) and meta-analytic findings linking EQ to leadership effectiveness, team performance, and well-being. It then examines the trainability of EQ—evaluating interventions from coaching and mindfulness to digital upskilling platforms—highlighting which techniques yield the biggest gains and under what conditions. Case studies of corporate EQ programs and practical assessment tools round out the report, concluding with evidence-based recommendations for individuals and organizations looking to boost emotional skills for better personal and professional outcomes.