down regulations for the governance of the school, and for supervising all its affairs. The dean of GSAS is responsible for implementing and supervising the policies of the faculty in the area of graduate education. In addition to its own master's and PhD programs, GSAS nominally oversees the PhD programs in Harvard's professional schools: Harvard Business School, Harvard Divinity School, the Harvard Graduate School of Education, Harvard Medical School, the Harvard T. H. Chan School of Public Health, the Harvard Graduate School of Design, and the John F. Kennedy School of Government. Academic programs The Graduate School of Arts and Sciences offers many degree programs, including: African and African American Studies American Studies Anthropology Astronomy Bioengineering Celtic Languages and Literatures Chemistry and Chemical Biology Computer Science The Classics Comparative Literature Earth and Planetary Sciences East Asian Languages and Civilizations Economics Education Engineering and Applied Sciences English Germanic Languages and Literatures Government History History of Art and Architecture History of Science Human Evolutionary Biology Linguistics Mathematics Middle Eastern Studies Molecular and Cellular Biology Music Near Eastern Languages and Civilizations Organismic and Evolutionary Biology Philosophy Physics Psychology Romance Languages and Literatures Slavic Languages and Literatures Sociology South Asian Studies Statistics Stem Cell and Regenerative Biology Student life As of 2019, Harvard's Graduate School of Arts and Sciences had 4,521 students, with the vast majority (4,392 students) pursuing PhDs. 46% of GSAS students are women, 30% of students are international, and 12% are underrepresented minorities. 20% of GSAS students pursue degrees in humanities, 26% in social sciences, and the remaining 54% in natural sciences. GSAS students have a dedicated space on Harvard Yard, known as The GSAS Student Center at Lehman Hall. Graduate students who prefer to dine on-campus do so at the GSAS Student Center, which features a full-scale dining hall as well as a smaller cafe. The building also provides study and leisure spaces. Financial aid GSAS guarantees full funding for all PhD students for five years, which covers tuition, health fees, and living expenses. The PhD funding packages include a combination of tuition grants, stipends, traineeships, teaching fellowships, research assistantships, and other academic appointments. Although master's students are not guaranteed full funding, they often receive financial support covering at least half of tuition and fees. Housing As of 2017, Harvard's GSAS guarantees housing for all first-year graduate students, as long as the students apply for accommodations by April 22. GSAS