He attended the University of Puerto Rico after graduating from high school and earned his teacher's certificate.

Pedreria then moved to Spain to pursue a doctorate in Philosophy and Letters at the Central University of Madrid, which he earned in 1932.

Pedreira believed that Puerto Rico was in danger of losing its cultural identity and expressed his beliefs in a daily column titled "Aclaraciones y críticas" (Clarification and criticism), published in El Mundo newspaper.

In his book he also talks about the cultural survival of the Puerto Rican identity after the island was invaded by the United States.

He was an active member of Phi Eta Mu fraternity, besides that, other associations recognized his importance in the Puerto Rican culture.