This Sutton Trust summary accompanies the report "Which University Degrees Are Best for Intergenerational Mobility?," produced by the Institute for Fiscal Studies in partnership with the Sutton Trust and the Department for Education. The research is a landmark piece of work for the study of social mobility in this country, utilising data on socio-economic background and education pathways linked to adult labour market outcomes for virtually the entire population. This provides the clearest picture yet on the role of higher education in social mobility. The report looks in detail at how higher education attendance influences the chances of social mobility. While social mobility can take many forms, the piece looks at income mobility in particular, looking at how many young people who grow up economically disadvantaged move into high income groups when they reach adulthood, and which university pathway they have taken. Eligibility for Free School Meals (FSM) at 16 is used as the marker of disadvantage while growing up, while adult earnings are measured at age 30, allowing time for careers to stabilise and mature. The top fifth of incomes, a common threshold used for income mobility, is the primary measure used in this summary report, but other thresholds are also explored in the full report.