Prompt book
Also called: Production book ยท The book ยท The bible ยท Calling script
The stage manager's master binder: the script with every blocking note and cue, plus contacts, schedules and plots.
If the stage manager is sick, someone else should be able to call the show from it. That is the test of a good book. Usage differs: some guides split the production book (the rehearsal record) from the prompt book (the calling script); many use the two names for the same binder.
Stage managers