"Class Diary" follows the daily routines of three women - a young trans woman, an imprisoned mother and a housekeeper - all of whom are students at adult literacy centers in Salvador, Brazil. Although these women follow different paths, their trajectories coincide around the quotidian prejudices and injustices that they face. This Direct Cinema documentary focuses on classroom encounters in an effort to develop the characters' everyday lives, and in the process, reveals the daily fight they wage against the would-be systematic erasures of their existences.