Gabriel Chalita was born in Cachoeira Paulista, in the state of São Paulo, to a father of Lebanese descent with roots in Bekaa Kafra and a Syrian mother who immigrated to Brazil at a young age.

In the same year, defended the thesis The Seduction in the Speech in Jury Courts, obtaining the grade of Doctor in Communication and Semiotics, also by the PUC-SP.

Currently has more than 80 books published,[3] among them: Educação: a solução está no afeto, Os Dez Mandamentos da Ética, Pedagogia do Amor, Cartas entre Amigos, and O Pequeno Filósofo.

On 13 January 2015, Chalita was nominated by mayor Fernando Haddad as Secretary of Education of São Paulo, replacing César Callegari, who resigned a day before.

[5] In March 2016, he returned to the Democratic Labor Party (PDT),[6] being appointed as candidate for Vice Mayor along with Haddad, but both were defeated in the first round.