- The master copy of a play kept by the stage manager or prompter.It is a log that records all actors' moves, technical cues, and propsinvolved in the production. One page contains the final script andthe facing page charts the moves, lighting, etc.: essential directionsare recorded next to the relevant line. Cues for lighting and soundare written in different colours for quick identification. Advancewarnings for upcoming cues are recorded in the book as 'WARN' andthe exact moment of operation is labelled 'GO'. see also plotsheet.