Professional development is the skills and knowledge an employee gains to optimize her personal development and job growth. It includes learning opportunities, such as college degrees and coursework, or attending conferences or training sessions. This development is an extensive and collaborative process; upon completion, an evaluation of progress is usually performed. Many different professionals engage in such learning opportunities, including teachers, lawyers, healthcare professionals, and engineers. These individuals often have a desire for career longevity and personal growth, and they are, therefore, willing to undergo the necessary training to obtain these goals.