Employee retention involves keeping employees within an organization for as long as possible or until projects are complete. Common reasons for employee turnover include jobs not meeting expectations, overwork stress, lack of growth opportunities, insufficient appreciation, lack of trust and support, and compensation issues. Organizations can improve retention by hiring the right people, empowering and supporting employees, providing feedback, appreciation, and a healthy work environment to boost morale. Failure to retain employees results in costs like losing company knowledge, interrupting customer service, and damaging company goodwill and efficiency. Effective retention strategies aim to increase employee satisfaction.