As of 2002, Cabot has written two sequels to The Princess Diaries, Princess in the Spotlight and Princess in Love, with plans to publish additional volumes annually. The Princess Diaries also was distributed as an electronic book. Actress Anne Hathaway, who played Mia in the novel's film adaptation, narrated the Listening Library audiotape of The Princess Diaries. Premiering in 2001, the Walt Disney movie The Princess Diaries also starred Julie Andrews as Mia's grandmother. The film deviates from the book in several ways, switching the setting to San Francisco, explaining that Mia's father is deceased, and concluding with a romantic resolution.

Diaries are a frequently used literary framework. Readers interested in this format might want to read significant diaries written by real people such as Anne Frank in addition to fictionalized diaries such as Karen Cushman's Catherine, Called Birdy (1994), and Joan W. Blos's A Gathering of Days: A...