The term 'Salinger Title Girl' refers to three novels by J.D. Salinger, all of which feature female protagonists. The first novel is 'Esme', a four-letter word, which follows the story of a young girl who is sent away to boarding school and struggles to find her place in the world. The second novel is 'Zooey', a five-letter word, which follows the story of a young man and his sister as they grapple with their family's expectations and their own personal struggles. Finally, the third novel is 'Franny', a six-letter word, which follows the story of a young woman who is struggling to find meaning in her life and is questioning her faith. All three novels explore themes of identity, family, and faith, and are considered classics of American literature.