The Movimento dos Trabalhadores Sem Teto (MTST) is a Brazilian social movement focused on advocating for the rights of homeless workers and those without adequate housing. Founded in 1997, the movement aims to address the housing crisis in urban areas, promoting access to affordable housing and social justice for marginalized communities. MTST organizes protests, occupations, and community initiatives to raise awareness about housing issues and to pressure the government for policy changes. The movement emphasizes collective action and solidarity among its members, striving to create a more equitable society where everyone has the right to a safe and secure home.