L&S Leadership

Background image: Lion statue outside Durant Hall

Berkeley Letters & Science is led by a team of deans who work together to support research and teaching across the entire college.

Sara Guyer headshot for leadership page

Sara Guyer

Dean, Arts and Humanities

Sara Guyer is a professor of English, affiliate of the Center for Jewish Studies, and also serves as President of the international Consortium of Humanities Centers and Institutes and director of The World Humanities Report.  She has designed international programs to foster collaborative research on pressing issues including democracy, climate change, migration, and health inequality. Until August 2021, she was Dorothy Puestow Draheim Professor of English and Jewish Studies at the University of Wisconsin-Madison, where she directed the Center for the Humanities. She is the author of Romanticism after Auschwitz (2007) and Reading with John Clare: Biopoetics, Sovereignty, Romanticism (2015) and co-editor of the book series Lit Z. She received her Ph.D. in Rhetoric from UC Berkeley.

Headshot of Richard Harland, wearing collared blue shirt and eyeglasses

Richard Harland

Dean, Biological Sciences

Richard Harland is a C.H. Li Distinguished Professor of Molecular and Cell Biology. He first arrived at UC Berkeley as an assistant professor in 1984, and has since twice served as both co-chair for the Department of Molecular and Cell Biology (MCB) and head of the Division of Genetics and Development within MCB. Since 2016, Professor Harland has been the Senior Associate Dean for the Division of Biological Sciences. Notably, he has served as President of the Society for Developmental Biology and of the International Society for Differentiation. Professor Harland is both a member of the National Academy of Sciences and a Fellow of the Royal Society of London.

Jennifer Johnson-Hanks, executive dean of the College of Letters & Science

Jennifer Johnson-Hanks

Executive Dean, College of Letters & Science

Jennifer Johnson-Hanks is a professor of demography and sociology. She is a cultural demographer with interests in fertility and family, epistemology, and the history of population thought. Her publications include the books Uncertain Honor: Modern Motherhood in an African Crisis; Understanding Family Change and Variation: Structure, Conjuncture, and  Action; and a forthcoming book, How We Count: Why Quantitative Social Science Matters. Johnson-Hanks served as Chair of the Committee on Academic Planning and Resource Allocation and as Chair of the Berkeley Division of the Academic Senate. She received her undergraduate degree from UC Berkeley and her M.A. and Ph.D. from Northwestern University, all in anthropology.

Steven Kahn, Dean of Mathematical and Physical Sciences

Steven Kahn

Dean, Mathematical and Physical Sciences

Steven Kahn is the director of the Vera C. Rubin Observatory, a national project funded by the National Science Foundation through the Association of Universities for Research in Astronomy and by the Department of Energy through SLAC. He joined UC Berkeley from Stanford University, where he was the Cassius Lamb Kirk Professor in the natural sciences, a professor of physics, and a professor of particle physics and astrophysics at the SLAC National Accelerator Laboratory. He has been elected to the American Physical Society, the American Association for the Advancement of Science, and the American Academy of Arts and Sciences. Steven obtained a Ph.D. in physics from UC Berkeley and served as a professor of physics and astronomy for 15 years.

Headshot of Raka Ray standing in front of a building outdoors

Raka Ray

Dean, Social Sciences

Raka Ray has a bachelor’s degree from Bryn Mawr College and a Ph.D. from the University of Wisconsin-Madison. She is a professor of sociology and south and southeast Asia studies at UC Berkeley. She is a former chair of the Institute of South Asia Studies, the Department of Sociology, and the Academic Senate Committee on Budget and Interdepartmental Relations. Her publications include Fields of Protest: Women’s Movements in India; Social Movements in India: Poverty, Power, and Politics; Cultures of Servitude: Modernity, Domesticity and Class in India (with Seemin Qayum); and Both Elite and Everyman: The Cultural Politics of the Indian Middle Classes.