This book combines pieces of work on Europe and Latin America, the two continents where football arouses the most ardent passions among its spectators. Curiously, an undertaking to compare on a large scale the forms extreme fandom takes in these two geographical areas is still lacking. A situational analysis of the scientific literature devoted to the subject over the last two or three decades represents a step in this direction, making a scattered store of knowledge accessible. It thus answers a need to clarify regional differences in identities and in the practices of supporters. 

Bernardo Buarque de Hollanda is an Associate Professor at the School of Social Sciences and a researcher at the Centre for Research and Documentation on Brazilian Contemporary History at the Getulio Vargas Foundation (FGV/CPDOC), Brazil.

Thomas Busset is a Historian and Scientific Collaborator at the International Centre for Sports Studies (CIES), University of Neuchâtel, Switzerland. He oversees research on the links between hooliganism and right-wing extremism in Switzerland. Among his books are Aux Frontières Du Football Et Du Politique (2016) and L’autre Visage Du Supportérisme (2014).