Brecheret's work combines techniques of European modernist sculpture with references to his native country through the physical characteristics of his human forms and visual motifs drawn from Brazilian folk art.

His O Grupo was acquired by the French government in 1934 for the Musée du Jeu de Paume; it was later moved to the public library at La Roche-sur-Yon, where it remains on display.

[1] His best-known work, the massive Monument to the Banderas (Monumento às Bandeiras) at the entrance of Ibirapuera Park in São Paulo, was proposed (in the form of a plaster miniature) in 1920, begun in 1936, and completed on 25 January 1953.

Brecheret's Brazilian birth certificate lists his birthplace as São Paulo.

[2][3] A second-leval judicial sentence from the State Court of São Paulo issued on October 15, 2014 corroborates that Brecheret was born in Italy and emigrated to Brazil in 1904 with his maternal uncle Enrico Nanni.