"The Princess Diarist" is a reflective memoir by Carrie Fisher, primarily focusing on her experiences while filming "Star Wars." The book delves into Fisher's life during the iconic film's production, highlighting her personal struggles and the dynamics of being a young actress in the spotlight. Through her diary entries from that period, she reveals the pressures of fame and the impact it had on her confidence and mental health. A significant portion of the narrative centers on her affair with co-star Harrison Ford, offering a candid look at their complex relationship. Fisher's honesty and humor provide a unique perspective on Hollywood's culture during the 1970s, as well as the trials of navigating romance and professional life under public scrutiny.