This document provides an introduction to employee engagement. It defines employee engagement as the level of commitment and involvement an employee has towards their organization and its values. An engaged employee is aware of the business context and works to improve performance for the benefit of the organization. The document discusses different aspects of employee engagement including its meaning, definition, importance, relationship to organizational performance, strategies for improving engagement, factors leading to engagement, and models of engagement. It also includes four literature reviews related to research studies on employee engagement.