A Ph.D., or Doctor of Philosophy, is an advanced academic degree awarded to individuals who have completed extensive research in a specific field. This degree typically requires several years of study beyond a bachelor's and master's degree, culminating in a dissertation that contributes new knowledge to the field. Ph.D. holders often pursue careers in academia, research, or specialized professional roles. Earning a Ph.D. involves rigorous coursework, comprehensive exams, and original research. It signifies a high level of expertise and dedication, allowing graduates to teach at universities, publish scholarly articles, and influence their fields. Many scientists, engineers, and humanities scholars hold this prestigious title.