Professor of History at the Autonomous University of Barcelona (UAB), he has worked mainly on the periods of the Civil War, Francoism, the Transition and democracy, focusing his research on social movements, mechanisms and processes of political change and the shaping of popular identities. 

He has also specialised in the study of various national dynamics in Spain during the contemporary period. Apart from his lines of research, he has also curated exhibitions such as Memòria Democràtica de Sabadell, 1936 - 1976, Quan plovien bombes. Barcelona i els bombardejos durant la Guerra Civil or Refugi, and has worked on several projects to articulate historical memory. 

His main works include Moviment obrer i canvi polític (Icària, 2011), Hegemonies. Crisi, moviments de resistència i processos polítics (2010 - 2013) (Akal, 2014), Un feix de nacions. L'Estat i la plurinacionalitat a Espanya (1830-2017) (Península, 2020) and Lluita de classes, dictadura i democràcia. Obrers i empresaris (1939 - 1979) (Akal, 2022).