Earth science lecturers are subject professors, teachers, or lecturers who instruct students who have obtained an upper secondary education diploma in their own specialised field of study, earth science, which is predominantly academic in nature. They work with their university research assistants and university teaching assistants in preparation of lectures and of exams, grading papers and exams and leading review and feedback sessions for the students. They also conduct academic research in their field of earth science, publish their findings and liaise with other university colleagues.