An adjunct professor is a part-time instructor who is employed by a college or university to teach courses on a contract basis. Adjunct professors are typically hired to teach specific courses or fill temporary staffing needs, and they are not eligible for tenure or full-time benefits. They may have other full-time or part-time jobs in addition to teaching, and they often bring practical industry experience to their teaching role. Adjunct professors are important contributors to the academic community, as they bring diverse perspectives and expertise to the classroom. They may also serve as mentors and advisers to students, helping them navigate the academic and career paths.