A librettist is a writer who creates the text, or libretto, for an opera, musical, or other vocal works. The libretto includes the dialogue, lyrics, and stage directions, serving as the foundation for the performance. Librettists collaborate closely with composers to ensure that the music complements the story and characters. In the world of theater, the role of a librettist is crucial, as they help shape the narrative and emotional arc of the production. Famous librettists, such as Lorenzo Da Ponte and Stephen Sondheim, have made significant contributions to the art form, crafting memorable works that resonate with audiences.